Common use of Backlog Clause in Contracts

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods or as at the date indicated: Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% EPC Contracting 30,968,079 64.7% 85,808,575 79.7% Construction 13,529,319 28.2% 14,914,134 13.8% Equipment Manufacturing 98,120 0.2% 151,261 0.1% Total 47,922,442 100.0% 107,721,889 100.0% Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% Petrochemical 6,676,620 13.9% 21,230,623 19.7% New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% Total 47,922,442 100.0% 107,721,889 100.0% Regions PRC 36,874,306 76.9% 78,985,664 73.3% Overseas 11,048,136 23.1% 28,736,225 26.7% Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% Total 47,922,442 100.0% 107,721,889 100.0% The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Company Secretary Beijing, PRC 15 October 2014 As at the date of this announcement, the executive director of the Company is XXX Xxxxxxxx, the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx and the independent non-executive directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods or as at the date indicated: Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2016 As at 30 September 2014 2016 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 1,410,935 9.65 7,062,837 7.87 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 6,502,654 44.44 73,328,146 81.65 Construction 13,529,319 28.2% 14,914,134 13.8% 6,621,608 45.25 9,295,833 10.35 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 97,157 0.66 112,580 0.13 Total 47,922,442 100.0% 107,721,889 100.0% 14,632,354 100.00 89,799,396 100.00 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 4,224,901 28.87 31,540,184 35.12 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 3,635,572 24.85 17,960,650 20.00 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% 2,245,057 15.34 22,077,812 24.59 Other Industries 7,134,286 14.9% 9,049,359 8.4% 4,526,824 30.94 18,220,750 20.29 Total 47,922,442 100.0% 107,721,889 100.0% 14,632,354 100.00 89,799,396 100.00 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 11,463,277 78.34 58,389,940 65.02 Overseas 11,048,136 23.1% 28,736,225 26.7% 3,169,077 21.66 31,409,456 34.98 Total 47,922,442 100.0% 107,721,889 100.0% 14,632,354 100.00 89,799,396 100.00 Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2016 As at 30 September 2014 2016 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 6,782,576 46.35 39,871,834 44.40 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 7,849,778 53.65 49,927,562 55.60 Total 47,922,442 100.0% 107,721,889 100.0% 14,632,354 100.00 89,799,396 100.00 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Vice President and Secretary to the Board of Directors and the Company Secretary Beijing, PRC 15 14 October 2014 2016 As at the date of this announcement, the Company’s executive director of the Company is directors are XX Xxxx, XXX Xxxxxxxx, XXX Xxxx (employee representative director) and XX Xxxxxx (employee representative director); the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx Xxxxxxx and XX Xxxxxxx Xxxxxxx; and the independent non-executive directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax tax, and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-non- Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the twelve months ended 30 September 2014 31 December 2021 Backlog As at 30 September 2014 31 December 2021 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 5,919,716 9.4 10,776,048 9.7 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 28,194,050 44.6 68,746,486 61.9 Construction 13,529,319 28.2% 14,914,134 13.8% 28,165,412 44.6 30,646,674 27.6 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 870,892 1.4 875,969 0.8 Total 47,922,442 100.0% 107,721,889 100.0% 63,150,160 100.0 111,045,177 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% Petrochemical 6,676,620 13.9% 21,230,623 19.7% 10,621,260 16.8 28,305,346 25.5 Petrochemicals 31,018,691 49.2 25,478,004 22.9 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% 777,522 1.2 11,006,628 9.9 Storage & Transportation and Others 20,732,687 32.8 46,255,199 41.7 Total 47,922,442 100.0% 107,721,889 100.0% 63,150,160 100.0 111,045,177 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 54,470,927 86.3 81,327,589 73.2 Overseas 11,048,136 23.1% 28,736,225 26.7% 8,679,233 13.7 29,717,588 26.8 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 63,150,160 100.0 111,045,177 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 36,523,246 57.8 59,002,488 53.1 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 26,626,914 42.2 52,042,689 46.9 Total 47,922,442 100.0% 107,721,889 100.0% 63,150,160 100.0 111,045,177 100.0 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Xxx Xxxxx Chief Financial Officer, Secretary to the Board of Directors and the Board, Company Secretary Beijing, the PRC 15 October 2014 24 February 2022 As at the date of this announcement, the executive director directors of the Company is company are: XXX XxxxxxxxXxxx#, the non-executive directors are XXX XXXXX Xxxxx, XXX Xxxxxx#, XXXX XxxxxXxxxxx*, Xx Xxxxxxxxx*, XX Xxxxxx*, XXXXX Xxxxxxxx and XX Xxxxxxx and the independent non-executive directors are Xxxxx#, XXX Xxxx Xxxxx, XxxxxxxXxxxxxx+, XXX Xxxx Xxxx+ and XX Xxxxx.Xxxxx+. # Executive Directors * Non-executive Director + Independent non-executive Directors

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods or as at the date indicated: Total of New Contract Value Backlog Nine (RMB Percentage (RMB Percentage thousand) (%) thousand) (%) Business segments Engineering, Consulting and Licensing 634,100 10.94 7,187,269 8.11 EPC Contracting 1,700,665 29.33 68,193,239 76.99 Construction Equipment 3,462,276 59.70 13,079,822 14.77 Manufacturing 1,770 0.03 117,514 0.13 Total 5,798,811 100.00 88,577,844 100.00 Industries in which the Group’s clients operate Oil Refining 1,588,273 27.39 31,950,499 36.07 Petrochemical 3,079,683 53.11 19,048,137 21.50 New Coal Chemicals 111,292 1.92 19,259,921 21.75 Other Industries 1,019,563 17.58 18,319,287 20.68 Total 5,798,811 100.00 88,577,844 100.00 Regions PRC 5,727,809 98.78 58,156,677 65.66 Overseas 71,002 1.22 30,421,167 34.34 Total 5,798,811 100.00 88,577,844 100.00 For the three months ended 30 September 2014 31 March 2017 As at 30 September 2014 31 March 2017 Total of New Contract Value Backlog For the three months ended 31 March 2017 As at 31 March 2017 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% EPC Contracting 30,968,079 64.7% 85,808,575 79.7% Construction 13,529,319 28.2% 14,914,134 13.8% Equipment Manufacturing 98,120 0.2% 151,261 0.1% Total 47,922,442 100.0% 107,721,889 100.0% Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% Petrochemical 6,676,620 13.9% 21,230,623 19.7% New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% Total 47,922,442 100.0% 107,721,889 100.0% Regions PRC 36,874,306 76.9% 78,985,664 73.3% Overseas 11,048,136 23.1% 28,736,225 26.7% Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% Total 47,922,442 100.0% 107,721,889 100.0% The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Company Secretary Beijing, PRC 15 October 2014 As at the date of this announcement, the executive director of the Company is XXX Xxxxxxxx, the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx and the independent non-executive directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.Percentage

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be fully performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects Terms of the uncompleted projects may also extend due to various factors beyond the Group’s control, making the projects remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s controlanticipated. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the indicated periods or as at the date indicatedindicated date: Total of New Contract Value Backlog Nine For the three months ended 30 September 2014 31 March 2024 As at 30 September 2014 31 March 2024 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 2,482,645 7.4 13,304,315 8.6 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 23,583,357 69.8 111,755,232 71.8 Construction 13,529,319 28.2% 14,914,134 13.8% 7,389,989 21.9 28,513,679 18.2 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 308,392 0.9 2,114,891 1.4 Total 47,922,442 100.0% 107,721,889 100.0% 33,764,383 100.0 155,688,117 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 5,489,203 16.2 30,824,890 19.8 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 20,756,170 61.5 83,111,884 53.4 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% 3,198,145 9.5 5,016,585 3.2 Xxxxxxx & Transportation and Others 4,320,865 12.8 36,734,758 23.6 Total 47,922,442 100.0% 107,721,889 100.0% 33,764,383 100.0 155,688,117 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 28,011,286 83.0 115,185,227 74.0 Overseas 11,048,136 23.1% 28,736,225 26.7% 5,753,097 17.0 40,502,890 26.0 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 33,764,383 100.0 155,688,117 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 8,385,397 24.8 55,106,450 35.4 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 25,378,986 75.2 100,581,667 64.6 Total 47,922,442 100.0% 107,721,889 100.0% 33,764,383 100.0 155,688,117 100.0 The Board wishes to emphasise emphasize that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua XXX Xxxxxxxx Chief Financial Officer & Secretary to the Board of Directors and the Company Secretary Beijing, the PRC 15 October 2014 April 2024 As at the date of this announcement, the executive director directors of the Company is XXX Xxxxxxxx, the non-executive directors are XXX are: XXXXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx#, XXXXX Xxxxxxxx and Xxxxx#, XX Xxxxxxx and the independent non-executive directors are Xxxxxxxxx*, XX Xxxxxxx*, XX Xxxxxx*, XXXXX Xxxxxxx#, XXX Xxxx Xxxxx, XxxxxxxXxxxxxx+, XXXX Xxx+, XX Xxxxx+, XXXX Xxxxxxx+ and XXX Xxxx and XX Xxxxx.#. # Executive Directors * Non-executive Directors + Independent non-executive Directors

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax tax, and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-non- Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2020 Backlog As at 30 September 2014 2020 (RMB thousand) Percentage (%Percentage(%) (RMB thousand) Percentage (%Percentage(%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 3,516,901 7.3 9,849,601 9.2 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 30,388,472 63.1 79,350,389 74.3 Construction 13,529,319 28.2% 14,914,134 13.8% 13,904,831 28.8 16,976,824 15.9 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 368,456 0.8 593,264 0.6 Total 47,922,442 100.0% 107,721,889 100.0% 48,178,660 100.0 106,770,078 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 11,627,241 24.1 31,992,650 30.0 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 21,988,940 45.6 28,774,620 26.9 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% 392,403 0.9 10,965,531 10.3 Other Industries 7,134,286 14.9% 9,049,359 8.4% 14,170,076 29.4 35,037,277 32.8 Total 47,922,442 100.0% 107,721,889 100.0% 48,178,660 100.0 106,770,078 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 41,583,534 86.3 83,717,169 78.4 Overseas 11,048,136 23.1% 28,736,225 26.7% 6,595,126 13.7 23,052,909 21.6 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 48,178,660 100.0 106,770,078 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 34,203,431 71.0 62,298,902 58.3 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 13,975,229 29.0 44,471,176 41.7 Total 47,922,442 100.0% 107,721,889 100.0% 48,178,660 100.0 106,770,078 100.0 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Xxx Xxxxx Chief Financial Officer, Company Secretary Beijing, the PRC 15 16 October 2014 2020 As at the date of this announcement, the executive director of the Company is Directors are XX Xxxxxxx, XXXXX Xxxxx, XXX Xxxxxxxx, Xxxx (employee representative Director) and XXXX Xxxxxxxx (employee representative Director); the non-executive directors are XXX Xxxxx, XXX Directors is XX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx ; and the independent non-executive directors Directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects Term of the uncompleted projects may extend, resulting which may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-non- Sinopec Group and its associates during the periods or as at the date indicated: Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2023 As at 30 September 2014 2023 (RMB thousand) Percentage (%Percentage(%) (RMB thousand) Percentage (%Percentage(%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 3,165,527 7.1 11,690,757 9.9 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 23,993,102 54.1 79,443,135 66.9 Construction 13,529,319 28.2% 14,914,134 13.8% 16,490,867 37.2 25,902,751 21.8 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 709,352 1.6 1,694,431 1.4 Total 47,922,442 100.0% 107,721,889 100.0% 44,358,848 100.0 118,731,074 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 3,854,774 8.7 17,416,049 14.7 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 35,657,413 80.4 71,257,015 60.0 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% 374,719 0.8 2,118,357 1.8 Storage & Transportation and Others 4,471,942 10.1 27,939,653 23.5 Total 47,922,442 100.0% 107,721,889 100.0% 44,358,848 100.0 118,731,074 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 35,566,054 80.2 92,675,346 78.1 Overseas 11,048,136 23.1% 28,736,225 26.7% 8,792,794 19.8 26,055,728 21.9 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 44,358,848 100.0 118,731,074 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% Total 47,922,442 100.0% 107,721,889 100.0% The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Company Secretary Beijing, PRC 15 October 2014 As at the date of this announcement, the executive director of the Company is XXX Xxxxxxxx, the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx and the independent non-executive directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.and

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax tax, and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-non- Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the three months ended 30 September 2014 31 March 2021 Backlog As at 30 September 2014 31 March 2021 (RMB thousand) Percentage (%Percentage(%) (RMB thousand) Percentage (%Percentage(%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 1,200,204 4.1 9,208,143 7.6 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 17,376,192 58.1 85,751,203 70.3 Construction 13,529,319 28.2% 14,914,134 13.8% 11,125,800 37.2 26,149,659 21.4 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 190,694 0.6 857,955 0.7 Total 47,922,442 100.0% 107,721,889 100.0% 29,892,890 100.0 121,966,960 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% Petrochemical 6,676,620 13.9% 21,230,623 19.7% 3,916,910 13.1 31,902,690 26.2 Petrochemicals 16,039,685 53.7 36,017,710 29.5 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% 229,362 0.8 11,341,928 9.3 Storage & Transportation and Others(1) 9,706,933 32.4 42,704,632 35.0 Total 47,922,442 100.0% 107,721,889 100.0% 29,892,890 100.0 121,966,960 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 23,381,719 78.2 90,368,163 74.1 Overseas 11,048,136 23.1% 28,736,225 26.7% 6,511,171 21.8 31,598,797 25.9 Total 47,922,442 100.0% 107,721,889 100.0% Total 29,892,890 100.0 121,966,960 100.0 Note 1: In order to more accurately and effectively reflect the industries in which the Group’s clients operate, the name has been changed from “Other Industries” to “Storage & Transportation and Others”, basis of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) the amounts remains unchanged. Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 19,204,658 64.2 68,104,733 55.8 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 10,688,232 35.8 53,862,227 44.2 Total 47,922,442 100.0% 107,721,889 100.0% 29,892,890 100.0 121,966,960 100.0 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Xxx Xxxxx Chief Financial Officer, Company Secretary Beijing, the PRC 15 October 2014 16 April 2021 As at the date of this announcement, the executive director directors of the Company is company are: XXX Xxxxxxxx, the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX XxxxxXxxx#, XXXXX Xxxxxxxx and Xxxxx#, XXXXX Xxxxx#, XX Xxxxxxx and the independent non-executive directors are Xxxxxx*, XXX Xxxx Xxxxx, XxxxxxxXxxxxxx+, XXX Xxxx Xxxx+ and XX Xxxxx.Xxxxx+. # Executive Directors * Non-executive Director + Independent non-executive Directors

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax tax, and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec nonSinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 As 2022 as at 30 September 2014 2022 (RMB thousand) Percentage (%Percentage(%) (RMB thousand) Percentage (%Percentage(%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 2,610,802 4.5 11,261,679 9.2 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 40,718,729 70.6 82,275,502 67.1 Construction 13,529,319 28.2% 14,914,134 13.8% 13,675,605 23.7 27,846,397 22.7 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 671,001 1.2 1,209,024 1.0 Total 47,922,442 100.0% 107,721,889 100.0% 57,676,137 100.0 122,592,602 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% Petrochemical 6,676,620 13.9% 21,230,623 19.7% 6,393,424 11.1 29,363,379 24.0 Petrochemicals 43,865,422 76.1 48,575,181 39.6 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% 320,290 0.6 2,478,216 2.0 Storage & Transportation and Others 7,097,001 12.2 42,175,826 34.4 Total 47,922,442 100.0% 107,721,889 100.0% 57,676,137 100.0 122,592,602 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 51,926,889 90.0 89,887,386 73.3 Overseas 11,048,136 23.1% 28,736,225 26.7% 5,749,248 10.0 32,705,216 26.7 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 57,676,137 100.0 122,592,602 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 26,533,581 46.0 70,290,081 57.3 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 31,142,556 54.0 52,302,521 42.7 Total 47,922,442 100.0% 107,721,889 100.0% 57,676,137 100.0 122,592,602 100.0 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Xxx Xxxxx Chief Financial Officer, Secretary to the Board of Directors and the Company Secretary Beijing, the PRC 15 14 October 2014 2022 As at the date of this announcement, the executive director directors of the Company is are: XXX XxxxxxxxXxxx#, the non-executive directors are XXX XXXXX Xxxxx, XXX Xxxxxx#, XXXX XxxxxXxxxxx*, Xx Xxxxxxxxx*, XX Xxxxxx*, XXXXX Xxxxxxxx and XX Xxxxxxx and the independent non-executive directors are Xxxxx#, XXX Xxxx Xxxxx, XxxxxxxXxxxxxx+, XXX Xxxx Xxxx+ and XX Xxxxx.Xxxxx+. # Executive Directors * Non-executive Director + Independent non-executive Directors

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods or as at the date indicated: Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2015 Backlog As at 30 September 2014 2015 Business segments (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 2,676,903 8.1% 7,312,672 6.9% 6,847,919 6.4% EPC Contracting 30,968,079 64.719,652,509 59.6% 85,808,575 79.783,247,089 78.5% Construction 13,529,319 28.210,575,313 32.1% 14,914,134 13.815,325,292 14.5% Equipment Manufacturing 98,120 63,030 0.2% 151,261 123,048 0.1% Total 47,922,442 100.032,967,755 100% 107,721,889 100.0106,008,101 100% Industries in which the Group’s clients operate Oil Refining 16,902,004 35.32,890,466 8.8% 29,377,026 27.325,838,216 24.4% Petrochemical 6,676,620 13.96,408,592 19.4% 21,230,623 19.721,244,586 20.0% New Coal Chemicals 17,209,532 35.95,602,294 17.0% 48,064,881 44.639,493,337 37.3% Other Industries 7,134,286 14.918,066,403 54.8% 9,049,359 8.419,431,962 18.3% Total 47,922,442 100.032,967,755 100% 107,721,889 100.0106,008,101 100% Regions PRC 36,874,306 76.926,002,055 78.9% 78,985,664 73.376,974,486 72.6% Overseas 11,048,136 23.16,965,700 21.1% 28,736,225 26.729,033,615 27.4% Total 47,922,442 32,967,755 100.0% 107,721,889 106,008,101 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.419,073,213 57.9% 38,448,210 35.746,516,584 43.9% Non-Sinopec Group and its associates 33,377,129 69.613,894,542 42.1% 69,273,679 64.359,491,517 56.1% Total 47,922,442 32,967,755 100.0% 107,721,889 106,008,101 100.0% The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfullyBeijing, the PRC 14 October 2015 By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Vice President and Secretary to the Board of Directors and the Company Secretary Beijing, PRC 15 October 2014 As at the date of this announcement, the Company’s executive director of the Company is directors are XX Xxxx, XXX Xxxxxxxx, XXX Xxxx (employee representative director) and XX Xxxxxx (employee representative director); the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx Xxxxxxx and XX Xxxxxxx Xxxxxxx; and the independent non-executive directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx. This announcement will be available on the website of Hong Kong Exchanges and Clearing Limited (xxx.xxxx.xxx.xx) and on the website of the Company (xxx.xxxxxxx.xx).

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax tax, and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-non- Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2020 Backlog As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 2020 Business segments Engineering, Consulting and (RMB thousand) Percentage(%) (RMB thousand) Percentage(%) Licensing 3,326,924 6.9% 6,847,919 6.4% 3,516,901 7.3 9,849,601 9.2 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 30,388,472 63.1 79,350,389 74.3 Construction 13,529,319 28.2% 14,914,134 13.8% 13,904,831 28.8 16,976,824 15.9 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 368,456 0.8 593,264 0.6 Total 47,922,442 100.0% 107,721,889 100.0% 48,178,660 100.0 106,770,078 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 11,627,241 24.1 31,992,650 30.0 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 21,988,940 45.6 28,774,620 26.9 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% 392,403 0.9 10,965,531 10.3 Other Industries 7,134,286 14.9% 9,049,359 8.4% 14,170,076 29.4 35,037,277 32.8 Total 47,922,442 100.0% 107,721,889 100.0% 48,178,660 100.0 106,770,078 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 41,583,534 86.3 83,717,169 78.4 Overseas 11,048,136 23.1% 28,736,225 26.7% 6,595,126 13.7 23,052,909 21.6 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 48,178,660 100.0 106,770,078 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 34,203,431 71.0 62,298,902 58.3 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 13,975,229 29.0 44,471,176 41.7 Total 47,922,442 100.0% 107,721,889 100.0% 48,178,660 100.0 106,770,078 100.0 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Xxx Xxxxx Chief Financial Officer, Company Secretary Beijing, the PRC 15 16 October 2014 2020 As at the date of this announcement, the executive director of the Company is Directors are XX Xxxxxxx, XXXXX Xxxxx, XXX Xxxxxxxx, Xxxx (employee representative Director) and XXXX Xxxxxxxx (employee representative Director); the non-executive directors are XXX Xxxxx, XXX Directors is XX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx ; and the independent non-executive directors Directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects Term of the uncompleted projects may extend, resulting which may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods or as at the date indicated: Total of New Contract Value Backlog Nine For the three months ended 30 September 2014 31 March 2023 As at 30 September 2014 31 March 2023 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 1,479,523 7.9 12,017,565 10.1 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 12,203,493 65.2 82,265,106 68.8 Construction 13,529,319 28.2% 14,914,134 13.8% 4,952,265 26.4 23,885,638 20.0 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 92,830 0.5 1,326,145 1.1 Total 47,922,442 100.0% 107,721,889 100.0% 18,728,111 100.0 119,494,454 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 1,416,206 7.6 18,339,937 15.3 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 15,142,250 80.9 67,681,229 56.7 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% 108,412 0.5 2,039,087 1.7 Storage & Transportation and Others 2,061,243 11.0 31,434,201 26.3 Total 47,922,442 100.0% 107,721,889 100.0% 18,728,111 100.0 119,494,454 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 18,595,623 99.3 99,658,797 83.4 Overseas 11,048,136 23.1% 28,736,225 26.7% 132,488 0.7 19,835,657 16.6 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 18,728,111 100.0 119,494,454 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 8,303,951 44.3 64,559,602 54.0 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 10,424,160 55.7 54,934,852 46.0 Total 47,922,442 100.0% 107,721,889 100.0% 18,728,111 100.0 119,494,454 100.0 The Board wishes to emphasise emphasis that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua XXX Xxxxx Chief Financial Officer, Secretary to of the Board of Directors and the Company Secretary Beijing, the PRC 15 October 2014 14 April 2023 As at the date of this announcement, the executive director Directors of the Company is XXX Xxxxxxxx, the non-executive directors are XXX Xxxx#, XXXXX Xxxxx, XXX Xxxxxx#, XXXX XxxxxXxxxxx*, XX Xxxxxxxxx*, XX Xxxxxx*, XXXXX Xxxxxxxx and XX Xxxxxxx and the independent non-executive directors are Xxxxx#, XXX Xxxx Xxxxx, XxxxxxxXxxxxxx+, XXX Xxxx Xxxx+ and XX Xxxxx.Xxxxx+. # Executive Director * Non-executive Director + Independent non-executive Director

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects Terms of the uncompleted projects may extend, resulting in these projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-non- Sinopec Group and its associates during the periods or as at the date indicated: Total of New Contract Value Backlog Nine For the twelve months ended 30 September 2014 31 December 2023 As at 30 September 2014 31 December 2023 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 4,136,226 5.2 11,452,408 8.4 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 51,710,336 64.4 96,662,360 70.9 Construction 13,529,319 28.2% 14,914,134 13.8% 23,481,092 29.3 26,289,189 19.3 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 924,063 1.1 1,858,273 1.4 Total 47,922,442 100.0% 107,721,889 100.0% 80,251,717 100.0 136,262,230 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 16,189,721 20.2 27,195,883 20.0 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 46,085,389 57.4 71,961,139 52.8 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% 392,225 0.5 1,939,729 1.4 Storage & Transportation and Others 17,584,382 21.9 35,165,479 25.8 Total 47,922,442 100.0% 107,721,889 100.0% 80,251,717 100.0 136,262,230 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 58,805,078 73.3 99,709,056 73.2 Overseas 11,048,136 23.1% 28,736,225 26.7% 21,446,639 26.7 36,553,174 26.8 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 80,251,717 100.0 136,262,230 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 21,999,001 27.4 53,258,736 39.1 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 58,252,716 72.6 83,003,494 60.9 Total 47,922,442 100.0% 107,721,889 100.0% 80,251,717 100.0 136,262,230 100.0 The Board wishes to emphasise emphasize that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order Order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua XXX Xxxxxxxx Chief Financial Officer & Secretary to of the Board of Directors and the Company Secretary Beijing, the PRC 15 October 2014 26 February 2024 As at the date of this announcement, the executive director directors of the Company is XXX Xxxxxxxxare: XXXXX Xxxxx#, the non-executive directors are XXXXX Xxxxx#, XX Xxxxxxx*, XX Xxxxxxxxx*, XX Xxxxxx*, XXXXX Xxxxxxx#, XXX Xxxxx#, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx and the independent non-executive directors are XXX Xxxx Xxxxx, XxxxxxxXxxxxxx+, XXX Xxxx XXXX Xxx+, XX Xxxxx+ and XX Xxxxx.XXXX Xxxxxxx+. # Executive Directors * Non-executive Directors + Independent non-executive Directors

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2017 Percentage Backlog As at 30 September 2014 2017 Percentage (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 2,146,805 8.23 7,338,731 7.91 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 11,471,580 43.98 69,353,514 74.73 Construction 13,529,319 28.2% 14,914,134 13.8% Equipment 11,775,265 45.15 15,524,274 16.73 Manufacturing 98,120 0.2% 151,261 0.1% 687,360 2.64 588,694 0.63 Total 47,922,442 100.0% 107,721,889 100.0% 26,081,010 100.00 92,805,213 100.00 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 6,548,497 25.11 29,417,879 31.70 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 15,095,855 57.88 27,064,926 29.16 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% 1,367,794 5.24 18,265,190 19.68 Other Industries 7,134,286 14.9% 9,049,359 8.4% 3,068,864 11.77 18,057,218 19.46 Total 47,922,442 100.0% 107,721,889 100.0% 26,081,010 100.00 92,805,213 100.00 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 25,651,351 98.35 69,251,956 74.62 Overseas 11,048,136 23.1% 28,736,225 26.7% 429,660 1.65 23,553,257 25.38 Total 47,922,442 100.0% 107,721,889 100.0% 26,081,010 100.00 92,805,213 100.00 Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2017 Percentage Backlog As at 30 September 2014 2017 Percentage (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 10,111,200 38.77 41,588,421 44.81 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 15,969,810 61.23 51,216,792 55.19 Total 47,922,442 100.0% 107,721,889 100.0% 26,081,010 100.00 92,805,213 100.00 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Vice President, Secretary to the Board of Directors and the Company Secretary Beijing, the PRC 15 16 October 2014 2017 As at the date of this announcement, the Company’s executive director of the Company is directors are XX Xxxx, XXXXX Xxxxx, XXX Xxxxxxxx, Xxxx (employee representative director) and XX Xxxxxx (employee representative director); the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx Xxxxx and XX Xxxxxxx Xxxxxxx; and the independent non-executive directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx. This announcement is available on the website of Hong Kong Exchanges and Clearing Limited (xxx.xxxx.xxx.xx) and on the website of the Company (xxx.xxxxxxx.xx).

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods or as at the date indicated: Total of New Contract Value Backlog Nine For the three months ended 30 September 2014 31 March 2016 Backlog As at 30 September 2014 31 March 2016 (RMB thousand) Percentage (%Percentage(%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 430,104 9.87 6,896,942 6.40 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 2,180,317 50.03 88,335,934 81.97 Construction 13,529,319 28.2% 14,914,134 13.8% 1,712,486 39.30 12,418,684 11.52 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 34,688 0.80 118,289 0.11 Total 47,922,442 100.0% 107,721,889 100.0% 4,357,595 100.00 107,769,849 100.00 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 1,102,649 25.30 32,375,958 30.04 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 1,718,268 39.43 21,912,170 20.33 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% 81,352 1.87 35,292,071 32.75 Other Industries 7,134,286 14.9% 9,049,359 8.4% 1,455,326 33.40 18,189,650 16.88 Total 47,922,442 100.0% 107,721,889 100.0% 4,357,595 100.00 107,769,849 100.00 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 4,357,595 100.00 73,301,879 68.02 Overseas 11,048,136 23.1% 28,736,225 26.7% — — 34,467,970 31.98 Total 47,922,442 100.0% 107,721,889 100.0% 4,357,595 100.00 107,769,849 100.00 Total of New Contract Value Backlog Nine For the three months ended 30 September 2014 As at 30 September 2014 31 March 2016 (RMB thousand) Percentage (%) Backlog As at 31 March 2016 (RMB thousand) Percentage (%) Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 3,161,615 72.55 41,884,158 38.86 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 1,195,980 27.45 65,885,691 61.14 Total 47,922,442 100.0% 107,721,889 100.0% 4,357,595 100.00 107,769,849 100.00 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfullyBeijing, PRC 15 April 2016 By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Vice President, Secretary to the Board of Directors and the Company Secretary Beijing, PRC 15 October 2014 As at the date of this announcement, the Company’s executive director of the Company is directors are XX Xxxx, XXX Xxxxxxxx, XXX Xxxx (employee representative director) and XX Xxxxxx (employee representative director); the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx Xxxxxxx and XX Xxxxxxx Xxxxxxx; and the independent non-executive directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx. This announcement will be available on the website of Hong Kong Exchanges and Clearing Limited (xxx.xxxx.xxx.xx) and on the website of the Company (xxx.xxxxxxx.xx).

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax tax, and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-non- Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the nine months ended 30 September 2014 2019 Backlog As at 30 September 2014 2019 (RMB thousand) Percentage (%Percentage(%) (RMB thousand) Percentage (%Percentage(%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 2,087,308 5.11 8,422,220 8.52 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 26,581,961 65.13 77,172,248 78.04 Construction 13,529,319 28.2% 14,914,134 13.8% 11,092,183 27.18 11,932,488 12.07 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 1,051,892 2.58 1,367,163 1.37 Total 47,922,442 100.0% 107,721,889 100.0% 40,813,344 100.00 98,894,119 100.00 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% 11,640,411 28.52 31,912,317 32.27 Petrochemical 6,676,620 13.9% 21,230,623 19.7% 17,952,459 43.99 29,329,345 29.66 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% 4,844,253 11.87 12,093,899 12.23 Other Industries 7,134,286 14.9% 9,049,359 8.4% 6,376,221 15.62 25,558,558 25.84 Total 47,922,442 100.0% 107,721,889 100.0% 40,813,344 100.00 98,894,119 100.00 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 38,099,068 93.35 81,154,529 82.06 Overseas 11,048,136 23.1% 28,736,225 26.7% 2,714,276 6.65 17,739,590 17.94 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 40,813,344 100.00 98,894,119 100.00 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 25,847,830 63.33 54,640,843 55.25 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 14,965,514 36.67 44,253,276 44.75 Total 47,922,442 100.0% 107,721,889 100.0% 40,813,344 100.00 98,894,119 100.00 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Xxx Xxxxx Chief Financial Officer, Company Secretary Beijing, the PRC 15 October 2014 2019 As at the date of this announcement, the executive director of the Company is XXX XxxxxxxxDirectors are XX Xxxx, the non-executive directors are XXX XXXXX Xxxxx, XXX Xxxxxx, Xxxx (employee representative Director) and XXXX Xxxxx, XXXXX Xxxxxxxx (employee representative Director); the non- executive Directors are XX Xxxxxx and XX Xxxxxxx Xxxxxx; and the independent non-executive directors Directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax tax, and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-non- Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the twelve months ended 30 September 2014 31 December 2019 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 31 December 2019 Business segments Engineering, Consulting and (RMB thousand) Percentage(%) (RMB thousand) Percentage(%) Licensing 3,326,924 6.9% 6,847,919 6.4% 2,713,103 5.2 8,192,663 8.6 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 31,208,711 59.7 72,662,664 76.5 Construction 13,529,319 28.2% 14,914,134 13.8% 17,317,903 33.1 12,829,461 13.5 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 1,079,430 2.0 1,308,772 1.4 Total 47,922,442 100.0% 107,721,889 100.0% 52,319,147 100.0 94,993,560 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% Petrochemical 6,676,620 13.9% 21,230,623 19.7% 14,058,072 26.9 28,201,648 29.7 Petrochemicals 24,035,891 45.9 28,285,500 29.8 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% 7,012,922 13.4 13,394,670 14.1 Other Industries 7,134,286 14.9% 9,049,359 8.4% 7,212,262 13.8 25,111,742 26.4 Total 47,922,442 100.0% 107,721,889 100.0% 52,319,147 100.0 94,993,560 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 45,585,147 87.1 74,754,485 78.7 Overseas 11,048,136 23.1% 28,736,225 26.7% 6,734,000 12.9 20,239,075 21.3 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 52,319,147 100.0 94,993,560 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 29,195,571 55.8 49,789,049 52.4 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 23,123,576 44.2 45,204,511 47.6 Total 47,922,442 100.0% 107,721,889 100.0% 52,319,147 100.0 94,993,560 100.0 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Xxx Xxxxx Chief Financial Officer, Company Secretary Beijing, the PRC 15 October 2014 28 February 2020 As at the date of this announcement, the executive director of the Company is XXX XxxxxxxxDirectors are XX Xxxxxxx, the non-executive directors are XXX XXXXX Xxxxx, XXX Xxxx (employee representative Director) and XXXX Xxxxxxxx (employee representative Director); the non- executive Director is XX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx ; and the independent non-executive directors Directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the twelve months ended 30 September 2014 31 December 2017 Backlog As at 30 September 2014 31 December 2017 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 3,704,714 9.5 7,838,104 8.6 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 19,838,314 50.8 67,712,961 74.4 Construction 13,529,319 28.2% 14,914,134 13.8% 14,685,028 37.6 14,896,489 16.4 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 835,348 2.1 580,390 0.6 Total 47,922,442 100.0% 107,721,889 100.0% Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% Petrochemical 6,676,620 13.9% 21,230,623 19.7% New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% Other Industries 7,134,286 14.9% 9,049,359 8.4% Total 47,922,442 100.0% 107,721,889 100.0% Regions PRC 36,874,306 76.9% 78,985,664 73.3% Overseas 11,048,136 23.1% 28,736,225 26.7% Total 47,922,442 100.0% 107,721,889 100.0% 39,063,404 100.0 91,027,944 100.0 Total of New Contract Value Backlog Nine For the twelve months ended 30 September 2014 31 December 2017 Backlog As at 30 September 2014 31 December 2017 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% Total 47,922,442 100.0% 107,721,889 100.0% The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Company Secretary Beijing, PRC 15 October 2014 As at the date of this announcement, the executive director of the Company is XXX Xxxxxxxx, the non-executive directors are XXX Xxxxx, XXX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx and the independent non-executive directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.Percentage

Backlog. Backlog represents the total estimated contract value of work that remains to be completed pursuant to outstanding contracts as at a certain date, net of estimated value added tax tax, and is based on the Group’s assumption that the relevant contracts will be performed in accordance with their terms. Backlog is not a measure defined by generally accepted accounting principles. Any modification, termination or suspension of these contracts by the Group’s clients may have a substantial and immediate effect on the Group’s backlog. Projects may also remain in the Group’s backlog for an extended period of time beyond what was initially anticipated due to various factors beyond the Group’s control. The table below sets out the details of the total value of new contracts entered into by the Group and its backlog categorised by (1) business segments; (2) the industries in which the Group’s clients operate; (3) regions; and (4) clients of each of (i) China Petrochemical Corporation (“Sinopec Group”) and its associates and (ii) the non-Sinopec Group and its associates during the periods period or as at the date indicated: Total of New Contract Value Backlog Nine For the twelve months ended 30 September 2014 31 December 2020 Backlog As at 30 September 2014 31 December 2020 (RMB thousand) Percentage (%Percentage(%) (RMB thousand) Percentage (%Percentage(%) Business segments Engineering, Consulting and Licensing 3,326,924 6.9% 6,847,919 6.4% 4,046,963 6.4 8,636,102 8.2 EPC Contracting 30,968,079 64.7% 85,808,575 79.7% 37,138,017 58.9 76,223,009 72.1 Construction 13,529,319 28.2% 14,914,134 13.8% 21,154,013 33.6 20,003,498 18.9 Equipment Manufacturing 98,120 0.2% 151,261 0.1% 674,638 1.1 791,998 0.8 Total 47,922,442 100.0% 107,721,889 100.0% 63,013,631 100.0 105,654,607 100.0 Industries in which the Group’s clients operate Oil Refining 16,902,004 35.3% 29,377,026 27.3% Petrochemical 6,676,620 13.9% 21,230,623 19.7% 14,566,521 23.1 30,826,320 29.2 Petrochemicals 28,626,388 45.4 27,071,948 25.6 New Coal Chemicals 17,209,532 35.9% 48,064,881 44.6% 1,837,419 3.0 11,582,761 11.0 Other Industries 7,134,286 14.9% 9,049,359 8.4% 17,983,303 28.5 36,173,578 34.2 Total 47,922,442 100.0% 107,721,889 100.0% 63,013,631 100.0 105,654,607 100.0 Regions PRC 36,874,306 76.9% 78,985,664 73.3% 52,852,315 83.9 79,977,151 75.7 Overseas 11,048,136 23.1% 28,736,225 26.7% 10,161,316 16.1 25,677,456 24.3 Total 47,922,442 100.0% 107,721,889 100.0% Total of New Contract Value Backlog Nine months ended 30 September 2014 As at 30 September 2014 (RMB thousand) Percentage (%) (RMB thousand) Percentage (%) 63,013,631 100.0 105,654,607 100.0 Clients of each of (i) Sinopec Group and its associates and (ii) the non-Sinopec Group and its associates Sinopec Group and its associates 14,545,313 30.4% 38,448,210 35.7% 41,745,969 66.2 58,420,185 55.3 Non-Sinopec Group and its associates 33,377,129 69.6% 69,273,679 64.3% 21,267,662 33.8 47,234,422 44.7 Total 47,922,442 100.0% 107,721,889 100.0% 63,013,631 100.0 105,654,607 100.0 The Board wishes to emphasise that the above information in relation to the representative new contracts, the total value of new contracts and backlog shall not constitute any forecast or prediction of the profits of the Group. This announcement is made by the order of the Board. The Board collectively and individually accepts responsibility for the accuracy of this announcement. Shareholders of the Company and potential investors are advised to exercise caution when dealing in the shares of the Company. Yours faithfully, By order of the Board SINOPEC ENGINEERING (GROUP) CO., LTD. SANG Jinghua Secretary to the Board of Directors and the Xxx Xxxxx Chief Financial Officer, Company Secretary Beijing, the PRC 15 October 2014 26 February 2021 As at the date of this announcement, the executive director of the Company is Directors are XXX XxxxxxxxXxxx, XXXXX Xxxxx, and XXXXX Xxxxx; the non-executive directors are XXX Xxxxx, XXX Director is XX Xxxxxx, XXXX Xxxxx, XXXXX Xxxxxxxx and XX Xxxxxxx ; and the independent non-executive directors Directors are XXX Xxxx Xxxxx, Xxxxxxx, XXX Xxxx and XX Xxxxx.