Common use of OPERATING SEGMENT Clause in Contracts

OPERATING SEGMENT. Segment information is presented in respect of the business segments. The primary format in segment information report is based on the management and internal reporting structure. The Company and its subsidiary comprises the following main business segments: Segment 1 Fire Protection Products and Project Segment 2 Sanitary and Air–Conditioning System Segment 3 Refrigeration System Segment 4 Digital Printing System Operating segment by business in the consolidated statement of comprehensive income for the ended December 31, 2019 were as follows: Revenue from sale of goods 547,642 81,097 262,005 345,299 1,236,043 Revenue from rendering of services 96,479 – – 34,361 130,840 Cost of sale of goods (398,254) (58,695) (174,115) (196,846) (827,910) Cost of rendering of services (88,807) – – (31,976) (120,783) Gross profit 157,060 22,402 87,890 150,838 418,190 Other income 27,091 Selling expenses (117,556) Administrative expenses Finance cost (140,780) – Profit before income tax expense 186,945 Income tax expense (37,326) Profit for the periods 149,619 Other comprehensive income (expense) (1,642) Total comprehensive income for the years 147,977 Operating segment by business in the statement of comprehensive income for the years ended December 31, 2019 and 2018 were as follows: Thousand Baht Separate financial statements Profit before income tax expense 187,917 167,506 Income tax expense (37,326) (33,148) Profit for the years 150,591 134,358 Other comprehensive income (expense) (1,589) – Total comprehensive income for the years 149,002 134,358 Revenue from sale of goods 547,642 81,097 262,005 348,002 1,238,746 455,822 89,327 320,394 333,420 1,198,963 Revenue from rendering of services 96,479 – – 34,361 130,840 113,762 – – 31,540 145,302 Cost of sale of goods (398,254) (58,695) (174,115) (199,053) (830,117) (321,577) (66,951) (220,849) (193,132) (802,509) Cost of rendering of services (88,807) – – (31,976) (120,783) (98,996) – – (29,722) (128,718) Gross profit 157,060, 22,402 87,890 151,334 418,686 149,011 22,376 99,545 142,106 413,038 Other income 27,089 11,749 Selling expenses (117,457) (119,078) Administrative expenses Finance cost (140,401) – (138,203) – Operating segment by business in the statement of financial position as at December 31, 2019 and 2018 were as follows: Assets for reportable segments Trade receivables – other companies Inventories Goodwill Customer relationship Assets under common use – Investment property – Plant and equipment – Intangible assets 144,452 21,196 61,169 61,850 288,667 144,012 9,518 73,452 78,058 305,040 – – 200,066 134,606 334,672 – – 42,092 16,188 58,280 – – – – 229,967 – – – – 30,667 – – – – 20,947 – Others – – – – 328,057 Total assets for reportable segments 288,464 30,714 376,779 290,702 1,596,297 Total liabilities for reportable segments – – – 274,635 Operating segment by business in the statement of financial position as at December 31, 2019 and 2018 were as follows: Assets for reportable segments 2019 2018 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Trade receivables 144,452 21,196 61,169 64,857 291,674 117,937 21,920 64,915 58,337 263,109 Inventories 144,012 9,518 73,452 75,800 302,782 150,573 11,879 72,802 69,185 304,439 Goodwill – – 200,066 134,606 334,672 – – 200,066 134,606 334,672 Customer relationship Assets under common use – Investment property – – 42,092 – – – 16,188 – 58,280 229,967 – – 52,858 – – – 20,322 – 73,180 231,818 – Plant and equipment – – – – 30,667 – – – – 32,681 – Others – – – – 321,799 – – – – 284,708 Total assets for reportable segments 288,464 30,714 376,779 291,451 1,590,788 268,510 33,799 390,641 282,450 1,548,586 Total liabilities for reportable segments – – – – 268,100 – – – – 281,381 For the years ended December 31, 2019 and 2018, there was no revenue from sales and service with a single external customers contributed 10% or more to the total revenue.

OPERATING SEGMENT. Segment information is presented in respect of the business segments. The primary format in segment information report is based on the management and internal reporting structure. The Company and its subsidiary comprises the following main business segments: Segment 1 Fire Protection Products and Project Segment 2 Sanitary and Air–-Conditioning System Segment 3 Refrigeration System Segment 4 Digital Printing System Operating segment by business in the consolidated statement of comprehensive income for the three-month periods ended December 31September 30, 2019 2017 and 2016 were as followsfollows : 2017 2016 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Revenue from sale of goods 547,642 81,097 262,005 345,299 1,236,043 128,124 21,029 89,224 64,346 302,723 145,396 13,046 - - 158,442 Revenue from rendering of services 96,479 – – 34,361 130,840 31,117 - - 10,846 41,963 20,179 - - - 20,179 Cost of sale of goods (398,25494,491) (58,69515,307) (174,11560,348) (196,84635,976) (827,910206,122) (108,332) (9,024) - - ( 117,356) Cost of rendering of services (88,80728,471) – – - - (31,97610,965) (120,78339,436) (16,433) - - - (16,433) Gross profit 157,060 22,402 87,890 150,838 418,190 36,279 5,722 28,876 28,251 99,128 40,810 4,022 - - 44,832 Other income 27,091 3,055 1,088 Selling expenses (117,55622,329) (8,413) Administrative expenses Finance cost (140,78037,181) – - (21,611) - Profit before income tax expense 186,945 42,673 15,896 Income tax expense (37,3268,771) (3,103) Profit for the periods 149,619 Other comprehensive income (expense) (1,642) 33,902 - 12,793 - Total comprehensive income for the years 147,977 periods 33,902 12,793 Operating segment by business in the statement of comprehensive income for the years nine-month periods ended December 31September 30, 2019 2017 and 2018 2016 were as followsfollows : Thousand Baht Separate financial statements Profit before income tax expense 187,917 167,506 Income tax expense (37,326) (33,148) Profit for the years 150,591 134,358 Other comprehensive income (expense) (1,589) – 2017 2016 Segment 1 Segment 2 Segment 3 Segment 4 Total comprehensive income for the years 149,002 134,358 Segment 1 Segment 2 Segment 3 Segment 4 Total Revenue from sale of goods 547,642 81,097 262,005 348,002 1,238,746 455,822 89,327 320,394 333,420 1,198,963 368,330 62,342 237,010 197,062 864,744 365,642 35,475 - - 401,117 Revenue from rendering of services 96,479 – – 34,361 130,840 113,762 – – 31,540 145,302 76,448 - - 24,563 101,011 59,846 - - - 59,846 Cost of sale of goods (398,254274,448) (58,69545,947) (174,115166,351) (199,053113,553) (830,117600,299) (321,577274,966) (66,95124,835) - - (220,849) (193,132) (802,509299,801) Cost of rendering of services (88,80766,595) – – - - (31,97626,474) (120,78393,069) (98,996) – – (29,72254,142) (128,71854,142) Gross profit 157,060, 22,402 87,890 151,334 418,686 149,011 22,376 99,545 142,106 413,038 103,735 16,395 70,659 81,598 272,387 96,380 10,640 - - 107,020 Other income 27,089 11,749 11,208 11,452 Selling expenses (117,45765,517) (119,07824,520) Administrative expenses Finance cost (140,401105,462) – - (138,20358,287) – - Profit before income tax expense 112,616 35,665 Income tax expense (21,602) (7,057) Profit for the periods Other comprehensive income 91,014 - 28,608 - Total comprehensive income for the periods 91,014 28,608 Operating segment by business in the statement of financial position as at September 30, 2017 and December 31, 2019 and 2018 2016 were as followsfollows : Assets for reportable segments Trade receivables – other companies Inventories Goodwill Customer relationship Assets under common use – Investment property – Plant and equipment – Intangible assets 144,452 21,196 61,169 61,850 288,667 144,012 9,518 73,452 78,058 305,040 – – 200,066 134,606 334,672 – – 42,092 16,188 58,280 – – – – 229,967 – – – – 30,667 – – – – 20,947 – Others – – – – 328,057 Total assets for reportable segments 288,464 30,714 376,779 290,702 1,596,297 Total liabilities for reportable segments – – – 274,635 Operating segment by business in the statement of financial position as As at September 30, 2017 As at December 31, 2019 and 2018 were as follows: Assets for reportable segments 2019 2018 2016 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Trade receivables 144,452 21,196 61,169 64,857 291,674 117,937 21,920 64,915 58,337 263,109 143,628 23,175 84,189 41,284 292,276 114,378 10,165 77,506 57,283 259,332 Inventories 144,012 9,518 73,452 75,800 302,782 150,573 11,879 72,802 69,185 304,439 138,251 13,789 92,885 55,049 299,974 128,967 8,661 55,110 44,828 237,566 Goodwill – – - - 200,066 134,606 334,672 – – - - 200,066 134,606 334,672 Customer relationship - - 66,338 25,500 91,838 - - 74,391 28,592 102,983 Assets under common use – Investment property – – 42,092 – – – 16,188 – 58,280 229,967 – – 52,858 – – – 20,322 – 73,180 231,818 – Plant and equipment – – – – 30,667 – – – – 32,681 – - Equipment - - - - 38,269 - - - - 41,565 - Intangible assets - - - - 28,048 - - - - 26,749 - Others – – – – 321,799 – – – – 284,708 - - - - 346,276 - - - - 376,984 Total assets for reportable segments 288,464 30,714 376,779 291,451 1,590,788 268,510 33,799 390,641 282,450 1,548,586 281,879 36,964 443,478 256,439 1,431,353 243,345 18,826 407,073 265,309 1,379,851 Total liabilities for reportable segments – – – – 268,100 – – – – 281,381 - - - - 255,305 - - - - 242,212 For the years nine-month periods ended December 31September 30, 2019 2017 and 20182016, there was no revenue from sales and service with a single external customers contributed 10% or more to the total revenue. The Company has revenues from service with external customers over 10% of total revenue from service. For the nine-month periods ended September 30, 2017 and 2016, the Company has revenue from service with 1 major customers and 2 major customers in amount of Baht 12.18 million and Baht 19.16 million, respectively.

OPERATING SEGMENT. Segment information is presented in respect of the business segments. The primary format in segment information report is based on the management and internal reporting structure. The Company and its subsidiary comprises the following main business segments: Segment 1 Fire Protection Products and Project Segment 2 Sanitary and Air–-Conditioning System Segment 3 Refrigeration System Segment 4 Digital Printing System Operating segment by business in the consolidated statement of comprehensive income for the three-month and six-month periods ended December 31June 30, 2020 and 2019 were as follows: Revenue from sale of goods 547,642 81,097 262,005 345,299 1,236,043 Revenue from rendering of 111,907 14,519 53,351 74,163 253,940 240,660 30,570 109,623 148,612 529,465 services 96,479 – – 34,361 130,840 28,445 - - 10,210 38,655 46,804 - - 20,618 67,422 Cost of sale of goods (398,25479,792) (58,6959,931) (174,11536,531) (196,84641,898) (827,910168,152) (170,264) (20,710) (73,404) (82,621) (346,999) Cost of rendering of services (88,80725,100) – – - - (31,9768,550) (120,78333,650) (42,683) - - (16,489) (59,172) Gross profit 157,060 22,402 87,890 150,838 418,190 35,460 4,588 16,820 33,925 90,793 74,517 9,860 36,219 70,120 190,716 Other income 27,091 Selling expenses 4,070 10,443 Distribution cost (117,55626,589) (55,667) Administrative expenses (34,517) (68,404) Profit from operation 33,757 77,088 Finance cost (140,78039) – Profit before income tax expense 186,945 (67) Income tax expense (37,3266,764) (15,266) Profit for the periods 149,619 26,954 61,755 Other comprehensive income (expense) (1,642292) (391) Total comprehensive income for the years 147,977 Operating segment by business in the statement of comprehensive income for the years ended December 31, 2019 and 2018 were as follows: Thousand Baht Separate financial statements Profit before income tax expense 187,917 167,506 Income tax expense (37,326) (33,148) Profit for the years 150,591 134,358 Other comprehensive income (expense) (1,589) – Total comprehensive income for the years 149,002 134,358 Revenue from sale of goods 547,642 81,097 262,005 348,002 1,238,746 455,822 89,327 320,394 333,420 1,198,963 Revenue from rendering of services 96,479 – – 34,361 130,840 113,762 – – 31,540 145,302 Cost of sale of goods (398,254) (58,695) (174,115) (199,053) (830,117) (321,577) (66,951) (220,849) (193,132) (802,509) Cost of rendering of services (88,807) – – (31,976) (120,783) (98,996) – – (29,722) (128,718) Gross profit 157,060, 22,402 87,890 151,334 418,686 149,011 22,376 99,545 142,106 413,038 Other income 27,089 11,749 Selling expenses (117,457) (119,078) Administrative expenses Finance cost (140,401) – (138,203) – Operating segment by business in the statement of financial position as at December 31, 2019 and 2018 were as follows: Assets for reportable segments Trade receivables – other companies Inventories Goodwill Customer relationship Assets under common use – Investment property – Plant and equipment – Intangible assets 144,452 21,196 61,169 61,850 288,667 144,012 9,518 73,452 78,058 305,040 – – 200,066 134,606 334,672 – – 42,092 16,188 58,280 – – – – 229,967 – – – – 30,667 – – – – 20,947 – Others – – – – 328,057 Total assets for reportable segments 288,464 30,714 376,779 290,702 1,596,297 Total liabilities for reportable segments – – – 274,635 Operating segment by business in the statement of financial position as at December 31, 2019 and 2018 were as follows: Assets for reportable segments 2019 2018 periods 26,662 61,364 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Revenue from rendering of Thousand Baht Separate financial statements For the three-month period ended June 30, 2020 For the three-month period ended June 30, 2019 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Revenue from sale of goods 111,907 14,519 53,351 72,666 252,443 136,301 19,719 54,956 84,921 295,897 Revenue from rendering of services 28,445 - - 9,655 38,100 39,953 - - 8,792 48,745 Cost of sale of goods (79,792) (9,931) (36,531) (40,490) (166,744) (99,550) (14,406) (36,766) (46,927) (197,649) Cost of rendering of services (25,100) - - (8,548) (33,648) (32,759) - - (8,204) (40,963) Gross profit 35,460 4,588 16,820 33,283 90,151 43,945 5,313 18,190 38,582 106,030 Distribution cost 4,722 6,757 Selling expenses (26,016) (29,760) Administrative expenses (34,297) (38,327) Profit from operation 34,560 44,700 Finance cost (39) - Income tax expense (6,880) (8,909) Profit for the periods Other comprehensive income 27,641 - 35,791 - Total comprehensive income for the periods 27,641 35,791 Thousand Baht Separate financial statements For the six-month period ended June 30, 2020 For the six-month period ended June 30, 2019 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Revenue from sale of goods 240,660 30,570 109,623 145,404 526,257 252,315 43,713 127,920 175,919 599,867 Revenue from rendering of Cost of rendering of services (42,683) - - (16,487) (59,170) (52,566) - - (15,887) (68,453) Gross profit 74,517 9,860 36,219 68,846 189,442 74,715 11,520 41,698 72,349 200,282 Distribution cost 10,019 15,166 Selling expenses (54,662) (57,041) Administrative expenses (67,954) (73,610) Profit from operation 76,845 84,797 Finance cost (67) - Income tax expense (15,270) (16,808) Profit for the periods 61,508 67,989 Other comprehensive income - - Total comprehensive income for the periods 61,508 67,989 Operating segment by business in the statement of financial position as at June 30, 2020 and December 31, 2019 were as follows: Assets for reportable segments Trade receivables - other Thousand Baht Consolidated financial statements As at June 30, 2020 As at December 31, 2019 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total companies 134,300 16,172 34,195 54,731 239,398 144,452 21,196 61,169 61,850 288,667 Inventories 139,217 11,737 69,427 91,386 311,767 144,012 9,518 73,452 78,058 305,040 Goodwill - - 200,066 134,606 334,672 - - 200,066 134,606 334,672 Customer relationship - - 36,724 14,126 50,850 - - 42,092 16,188 58,280 Assets under common use - Investment property - - - - 154,917 - - - - 229,967 - Property, plant and equipmen - - - - 103,354 - - - - 30,667 - Intangible assets - - - - 19,693 - - - - 20,947 - Others - - - - 347,559 - - - - 328,057 Total assets for reportable segments 273,517 27,909 340,412 294,849 1,562,210 288,464 30,714 376,779 290,702 1,596,297 t Total liabilities for reportable segments - - - - 284,394 274,635 Thousand Baht Separate financial statements As at June 30, 2020 As at December 31, 2019 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Assets for reportable segments Trade receivables - other companies 134,300 16,172 34,195 52,187 236,854 144,452 21,196 61,169 64,857 291,674 117,937 21,920 64,915 58,337 263,109 Inventories 139,217 11,737 69,427 72,132 292,513 144,012 9,518 73,452 75,800 302,782 150,573 11,879 72,802 69,185 304,439 Goodwill – – - - 200,066 134,606 334,672 – – - - 200,066 134,606 334,672 Customer relationship Assets under common use – - - 36,724 14,126 50,850 - - 42,092 16,188 58,280 - Investment property – – 42,092 – – – 16,188 – 58,280 - - - - 154,917 - - - - 229,967 – – 52,858 – – – 20,322 – 73,180 231,818 – Plant - Property, plant and equipment – – – – - - - - 103,303 - - - - 30,667 – – – – 32,681 – - Intangible assets - - - - 19,693 - - - - 20,947 - Others – – – – - - - - 351,099 - - - - 321,799 – – – – 284,708 Total assets for reportable segments 273,517 27,909 340,412 273,051 1,543,901 288,464 30,714 376,779 291,451 1,590,788 268,510 33,799 390,641 282,450 1,548,586 Total liabilities for reportable segments – – – – - - - - 264,914 - - - - 268,100 – – – – 281,381 For the years ended December 31, 2019 and 2018, there was no revenue from sales and service with a single external customers contributed 10% or more to the total revenue.Assets under common use

OPERATING SEGMENT. Segment information is presented in respect of the business segments. The primary format in segment information report is based on the management and internal reporting structure. The Company and its subsidiary comprises the following main business segments: Segment 1 Fire Protection Products and Project Segment 2 Sanitary and Air–-Conditioning System Segment 3 Refrigeration System Segment 4 Digital Printing System Operating segment by business in the consolidated statement of comprehensive income for the three-month periods ended December 31June 30, 2019 2018 and 2017 were as followsfollows : Revenue from sale of goods 547,642 81,097 262,005 345,299 1,236,043 Revenue from rendering of services 96,479 – – 34,361 130,840 Cost of sale of goods (398,254) (58,695) (174,115) (196,846) (827,910) Cost of rendering of services (88,807) – – (31,976) (120,783) Gross profit 157,060 22,402 87,890 150,838 418,190 Other income 27,091 Selling expenses (117,556) Administrative expenses Finance cost (140,780) – Profit before income tax expense 186,945 Income tax expense (37,326) Profit for For the periods 149,619 Other comprehensive income (expense) (1,642) Total comprehensive income for the years 147,977 Operating segment by business in the statement of comprehensive income for the years three-month period ended December 31June 30, 2019 and 2018 were as follows: Thousand Baht Separate financial statements Profit before income tax expense 187,917 167,506 Income tax expense (37,326) (33,148) Profit for the years 150,591 134,358 Other comprehensive income (expense) (1,589) – Total comprehensive income for the years 149,002 134,358 Revenue from sale of goods 547,642 81,097 262,005 348,002 1,238,746 455,822 89,327 320,394 333,420 1,198,963 Revenue from rendering of services 96,479 – – 34,361 130,840 113,762 – – 31,540 145,302 Cost of sale of goods (398,254) (58,695) (174,115) (199,053) (830,117) (321,577) (66,951) (220,849) (193,132) (802,509) Cost of rendering of services (88,807) – – (31,976) (120,783) (98,996) – – (29,722) (128,718) Gross profit 157,060, 22,402 87,890 151,334 418,686 149,011 22,376 99,545 142,106 413,038 Other income 27,089 11,749 Selling expenses (117,457) (119,078) Administrative expenses Finance cost (140,401) – (138,203) – Operating segment by business in the statement of financial position as at December 31, 2019 and 2018 were as follows: Assets for reportable segments Trade receivables – other companies Inventories Goodwill Customer relationship Assets under common use – Investment property – Plant and equipment – Intangible assets 144,452 21,196 61,169 61,850 288,667 144,012 9,518 73,452 78,058 305,040 – – 200,066 134,606 334,672 – – 42,092 16,188 58,280 – – – – 229,967 – – – – 30,667 – – – – 20,947 – Others – – – – 328,057 Total assets for reportable segments 288,464 30,714 376,779 290,702 1,596,297 Total liabilities for reportable segments – – – 274,635 Operating segment by business in the statement of financial position as at December 31, 2019 and 2018 were as follows: Assets for reportable segments 2019 2018 2017 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Revenue from sale of goods 114,854 20,751 88,863 85,221 309,689 121,002 19,951 82,243 69,434 292,630 Revenue from rendering of services 28,734 - - 18,627 47,361 28,779 - - 6,858 35,637 Cost of sale of goods (80,355) (15,507) (61,017) (55,420) (212,299) (89,993) (14,813) (58,101) (38,889) (201,796) Cost of rendering of services (27,133) - - (9,614) (36,747) (24,987) - - (8,460) (33,447) Gross profit 36,100 5,244 27,846 38,814 108,004 34,801 5,138 24,142 28,943 93,024 Other income 2,070 3,120 Selling expenses (29,075) (25,384) Administrative expenses Finance cost (38,884) - (31,845) - Profit before income tax expense 42,115 38,915 Income tax expense (8,333) (7,908) Profit for the periods Other comprehensive income 33,782 - 31,007 - Total comprehensive income for the periods 33,782 31,007 Operating segment by business in the statement of comprehensive income for the six-month periods ended June 30, 2018 and 2017 were as follows : For the six-month period ended June 30, Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total Revenue from sale of goods 225,360 42,642 165,345 156,990 590,337 240,206 41,313 147,786 132,716 562,021 Revenue from rendering of services 52,148 - - 25,224 77,372 45,331 - - 13,717 59,048 Cost of sale of goods (159,900) (31,984) (112,625) (98,440) (402,949) (179,957) (30,640) (106,003) (77,577) (394,177) Cost of rendering of services (47,172) - - (19,181) (66,353) (38,124) - - (15,509) (53,633) Gross profit 70,436 10,658 52,720 64,593 198,407 67,456 10,673 41,783 53,347 173,259 Other income 5,771 8,153 Selling expenses (53,793) (47,947) Administrative expenses Finance cost (72,642) - (63,522) - Profit before income tax expense 77,743 69,943 Income tax expense (15,354) (12,831) Profit for the periods Other comprehensive income 62,389 - 57,112 - Total comprehensive income for the periods 62,389 57,112 Operating segment by business in the statement of financial position as at June 30, 2018 and December 31, 2017 were as follows : Assets for reportable segments Trade receivables 144,452 21,196 61,169 64,857 291,674 117,937 21,920 64,915 58,337 263,109 - other companies Inventories 144,012 9,518 73,452 75,800 302,782 150,573 11,879 72,802 69,185 304,439 Goodwill – – 200,066 134,606 334,672 – – 200,066 134,606 334,672 Customer relationship Assets under common use – Investment property – – 42,092 – – – 16,188 – 58,280 229,967 – – 52,858 – – – 20,322 – 73,180 231,818 – Plant and equipment – – – – 30,667 – – – – 32,681 – - Equipment - Intangible assets - Others – – – – 321,799 – – – – 284,708 Total assets for reportable segments 288,464 30,714 376,779 291,451 1,590,788 268,510 33,799 390,641 282,450 1,548,586 Total liabilities for reportable segments – – – – 268,100 – – – – 281,381 For the years ended As at June 30, 2018 As at December 31, 2019 2017 132,684 24,024 85,193 67,070 308,971 118,278 19,085 70,717 54,807 262,887 129,485 9,946 97,991 69,173 306,595 136,777 9,088 87,324 58,077 291,266 - - 200,066 134,606 334,672 - - 200,066 134,606 334,672 - - 58,286 22,407 80,693 - - 63,624 24,458 88,082 - - - - 150,471 - - - - 150,468 - - - - 25,495 - - - - 27,301 - - - - 277,473 - - - - 302,666 262,169 33,970 441,536 293,256 1,484,370 255,055 28,173 421,731 271,948 1,457,342 - - - - 289,135 - - - - 242,666 Segment 1 Segment 2 Segment 3 Segment 4 Total Segment 1 Segment 2 Segment 3 Segment 4 Total For the six-month periods ended June 30, 2018 and 20182017, there was no revenue from sales and service with a single external customers contributed 10% or more to the total revenue. The Company has revenues from service with external customers over 10% of total revenue from service. For the six-month periods ended June 30, 2018 and 2017, the Company has revenue from service with 1 major customer and 2 major customers in amount of Baht 18.62 million and Baht 13.73 million, respectively.