Common use of TRADE AND OTHER CURRENT RECEIVABLES Clause in Contracts

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31, 2024 As at December 31, 2023 As at March 31, 2024 As at December 31, 2023 Trade receivable Other parties 10,354 10,461 8,730 8,502 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 - - - Contractor receivable 353 2,036 - - 19,335 62,490 - - Total 29,689 72,951 8,730 8,502 Less the expected credit loss allowance (7,566) (8,289) (6,445) (6,727) Net 22,123 64,662 2,285 1,775 Other current receivables Related parties 6 - - 1,691,967 1,622,566 Less the expected credit loss allowance - Related parties - - (542,416) (484,481) Net - - 1,149,551 1,138,085 Short-term receivables 35,253 34,559 28,608 27,730 Advance payment for goods 2,673 3,261 1,107 1,107 Advance payment to contractors 10,154 14,686 - - Cost to obtain contract 23,207 20,635 9,788 9,881 Other prepaid expenses 23,530 30,691 14,308 16,472 Suspense input tax 54,683 55,749 11,939 11,939 Other 21,859 10,329 13,751 2,268 Total 171,359 169,910 79,501 69,397 Less the expected credit loss allowance - short-term receivables (33,697) (33,726) (27,882) (28,083) Net 137,662 136,184 51,619 41,314 Total other current receivables 137,662 136,184 1,201,170 1,179,399 Total trade and other current receivables, net 159,785 200,846 1,203,455 1,181,174 Changes in the expected credit loss allowance trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at January 1, 2024 42,015 519,291 Add Increase during the period 205 57,935 Less Reversal during the period (957) (483) Balance as at March 31, 2024 41,263 576,743 Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March 31, 2024 As at December 31, 2023 As at March 31, 2024 As at December 31, 2023 Trade receivable Other parties: Within credit term 19,706 51,000 000 000 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 3 - 6 months 273 280 223 213 6 - 12 months 269 484 237 313 Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 Less the expected credit loss allowance (7,566) (8,289) (6,445) (6,727) Trade receivable - net 22,123 64,662 2,285 1,775 Other current receivables - net 137,662 136,184 1,201,170 1,179,399 Total trade and other current receivables - net 159,785 200,846 1,203,455 1,181,174 The normal credit term granted by the Group ranges 30 days.

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31June Note 30, 2024 2021 As at December 31, 2023 2020 As at March 31June 30, 2024 2021 As at December 31, 2023 2020 Trade receivable Other Related parties 10,354 10,461 8,730 8,502 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 5 - - - Contractor receivable 353 2,036 - - 19,335 62,490 - - Other parties 40,637 64,299 7,592 7,325 Total 29,689 72,951 8,730 8,502 40,637 64,299 7,592 7,325 Less the The expected credit loss allowance (7,5666,712) (8,2896,864) (6,4456,334) (6,7276,324) Net 22,123 64,662 2,285 1,775 33,925 57,435 1,258 1,001 Other current receivables Related parties 6 5 - - 1,691,967 1,622,566 Less the expected credit loss allowance - Related parties - - (542,416) (484,481) Net - - 1,149,551 1,138,085 37 1,067,326 1,044,797 Short-term other receivables 35,253 34,559 28,608 27,730 46,836 46,600 41,903 41,055 Advance payment for goods 2,673 3,261 1,107 1,107 6,718 8,953 2,337 2,240 Advance payment to contractors 10,154 14,686 9,413 149 - - Cost to obtain contract 23,207 20,635 9,788 9,881 9,963 13,341 5,472 7,490 Other prepaid expenses 23,530 30,691 14,308 16,472 Suspense input tax 54,683 55,749 11,939 11,939 18,528 28,102 17,025 27,295 Retention receivable 30,000 30,000 30,000 30,000 Other 21,859 10,329 13,751 2,268 39,644 36,539 14,152 14,486 Total 171,359 169,910 79,501 69,397 Less the The expected credit loss allowance - short-term other receivables 161,102 (33,69744,822) 163,721 (33,72643,320) 1,178,215 (27,88241,566) 1,167,363 (28,08340,108) Net 137,662 136,184 51,619 41,314 Total other current receivables 137,662 136,184 1,201,170 1,179,399 116,280 120,401 1,136,649 1,127,255 Total trade and other current receivables, receivables - net 159,785 200,846 1,203,455 1,181,174 150,205 177,836 1,137,907 1,128,256 Changes in the expected credit loss allowance trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at January 1, 2024 42,015 519,291 2021 50,184 46,432 Add Increase during the period 205 57,935 1,671 1,505 Less Reversal during the period (957321) (48337) Balance as at March 31June 30, 2024 41,263 576,743 2021 51,534 47,900 In Thousand Baht Consolidated Financial Statements Separate Financial Statements For the six-month period ended June 30, For the six-month period ended June 30, 0000 0000 0000 2020 The expected credit loss allowance increase during the period 1,671 801 1,505 338 The expected credit loss allowance (Reversal) during the period (321) (6,675) (37) (6,344) Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March 31, 2024 June As at December 31, 2023 As at March 31, 2024 June As at December 30, 2021 31, 2023 2020 30, 2021 31, 2020 Trade receivable Other parties: Within credit term 19,706 51,000 000 000 32,732 56,312 488 331 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 000 000 000 555 3 - 6 months 273 280 223 213 523 357 297 212 6 - 12 months 269 484 237 313 98 82 98 - Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 6,572 6,599 6,225 6,227 40,637 64,299 7,592 7,325 Less the expected credit loss allowance (7,5666,712) (8,2896,864) (6,4456,334) (6,7276,324) Trade receivable - net 22,123 64,662 2,285 1,775 33,925 57,435 1,258 1,001 Other current receivables - net 137,662 136,184 1,201,170 1,179,399 116,280 120,401 1,136,649 1,127,255 Total trade and other current receivables - net 159,785 200,846 1,203,455 1,181,174 150,205 177,836 1,137,907 1,128,256 The normal credit term granted by the Group ranges 30 days.

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31, 2024 2020 As at December 31, 2023 2019 As at March 31, 2024 2020 As at December 31, 2023 2019 Trade receivable Other Related parties 10,354 10,461 8,730 8,502 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 6 - - - Contractor receivable 353 2,036 - - 19,335 62,490 - - Other parties 12,398 13,033 10,607 10,605 Total 29,689 72,951 8,730 8,502 12,398 13,033 10,607 10,605 Less the expected credit loss allowance for doubtful accounts (7,5669,680) (8,2895,577) (6,4459,252) (6,7275,412) Net 22,123 64,662 2,285 1,775 2,718 7,456 1,355 5,193 Other current receivables Related parties 6 - - 1,691,967 1,622,566 Less the expected credit loss allowance - Related parties - - (542,416) (484,481) Net - - 1,149,551 1,138,085 37 37 901,344 873,612 Short-term other receivables 35,253 34,559 28,608 27,730 42,946 48,300 38,757 43,693 Advance payment for goods 2,673 3,261 1,107 1,107 40,894 37,905 40,562 37,886 Advance payment to contractors 10,154 14,686 - - 10,241 19,465 10,241 19,465 Cost to obtain contract 23,207 20,635 9,788 9,881 121,968 122,299 117,180 117,785 Other prepaid expenses 23,530 30,691 14,308 16,472 Suspense input tax 54,683 55,749 11,939 11,939 23,004 19,932 18,577 18,482 Other 21,859 10,329 13,751 2,268 42,620 46,515 26,121 28,687 Total 171,359 169,910 79,501 69,397 281,710 294,453 1,152,782 1,139,610 Less the expected credit loss allowance - for doubtful short-term receivables accounts receivable (33,69741,582) (33,72635,936) (27,88238,660) (28,08335,185) Net 137,662 136,184 51,619 41,314 Total other current receivables 137,662 136,184 1,201,170 1,179,399 240,128 258,517 1,114,122 1,104,425 Total trade and other current receivables, net 159,785 200,846 1,203,455 1,181,174 242,846 265,973 1,115,477 1,109,618 Changes in the expected credit loss allowance for doubtful trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at January 1December 31, 2024 42,015 519,291 2019 41,513 40,597 Effects of the adoption of TFRS 9 14,500 11,799 Add Increase during the period 205 57,935 363 338 Less Reversal during the period (9575,114) (4834,822) Balance as at March 31, 2024 41,263 576,743 2020 51,262 47,912 The movement of the allowance for doubtful debts are follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements For the three-month period ended March 31, For the three-month period ended March 31, 2020 2019 2020 2019 Increase doubtful debts 363 276 338 276 Doubtful debts (Reversal) (5,114) - (4,822) - Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March 31, 2024 2020 As at December 31, 2023 2019 As at March 31, 2024 2020 As at December 31, 2023 2019 Trade receivable Related party: Overdue: Over 12 months - - - - - - - - Other parties: Within credit term 19,706 51,000 000 000 1,362 1,974 213 314 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 1,486 1,767 1,269 1,449 3 - 6 months 273 280 223 213 886 982 791 881 6 - 12 months 269 484 237 313 472 226 463 171 Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 8,192 8,084 7,871 7,790 12,398 13,033 10,607 10,605 Less the expected credit loss allowance for doubtful accounts (7,5669,680) (8,2895,577) (6,4459,252) (6,7275,412) Trade receivable - net 22,123 64,662 2,285 1,775 2,718 7,456 1,355 5,193 Other current receivables - receivables, net 137,662 136,184 1,201,170 1,179,399 240,128 258,517 1,114,122 1,104,425 Total trade and other current receivables - receivables, net 159,785 200,846 1,203,455 1,181,174 242,846 265,973 1,115,477 1,109,618 The normal credit term granted by the Group ranges 30 days.

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31September 30, 2024 2023 As at December 31, 2023 2022 As at March 31September 30, 2024 2023 As at December 31, 2023 2022 Trade receivable Other parties 10,354 10,461 8,730 8,502 10,299 8,387 9,237 7,735 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 106,476 38,796 - - - Contractor receivable 353 2,036 335 2,530 - - 19,335 62,490 106,811 41,326 - - Total 29,689 72,951 8,730 8,502 117,110 49,713 9,237 7,735 Less the The expected credit loss allowance (7,5667,738) (8,2899,193) (6,4456,781) (6,7276,386) Net 22,123 64,662 2,285 1,775 109,372 40,520 2,456 1,349 Other current receivables Related parties 6 5 - - 1,691,967 1,622,566 1,557,265 1,322,553 Less the The expected credit loss allowance - Related parties - - (542,416317,329) (484,481142,079) Net - - 1,149,551 1,138,085 1,239,936 1,180,474 Short-term receivables 35,253 34,559 28,608 27,730 39,249 38,755 31,988 31,409 Advance payment for goods 2,673 3,261 1,107 5,232 11,744 1,133 1,107 Advance payment to contractors 10,154 14,686 12,532 29,461 - - Cost to obtain contract 23,207 20,635 9,788 9,881 20,036 17,789 9,782 10,494 Other prepaid expenses 23,530 30,691 14,308 16,472 71,093 57,719 24,373 24,319 Suspense input tax 54,683 55,749 11,939 11,939 54,606 44,392 11,942 9,169 Other 21,859 10,329 13,751 2,268 11,930 13,340 2,382 2,742 Total 171,359 169,910 79,501 69,397 214,678 213,200 81,600 79,240 Less the The expected credit loss allowance - short-term receivables (33,69737,967) (33,72637,590) (27,88231,970) (28,08331,756) Net 137,662 136,184 51,619 41,314 176,711 175,610 49,630 47,484 Total other current receivables 137,662 136,184 1,201,170 1,179,399 176,711 175,610 1,289,566 1,227,958 Total trade and other current receivables, net 159,785 200,846 1,203,455 1,181,174 286,083 216,130 1,292,022 1,229,307 Changes in the expected credit loss allowance trade and other current receivables were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at January 1, 2024 42,015 519,291 2023 46,783 180,221 Add Increase during the period 205 57,935 1,417 175,860 Less Reversal during the period (9572,495) (4831) Balance as at March 31September 30, 2024 41,263 576,743 2023 45,705 356,080 Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March 31September 30, 2024 2023 As at December 31, 2023 2022 As at March 31September 30, 2024 2023 As at December 31, 2023 2022 Trade receivable Other parties: Within credit term 19,706 51,000 000 000 107,888 39,055 1,201 240 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 1,174 1,293 1,038 1,027 3 - 6 months 273 280 223 213 603 192 490 9 6 - 12 months 269 484 237 313 251 351 40 176 Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 7,194 8,822 6,468 6,283 117,110 49,713 9,237 7,735 Less the expected credit loss allowance (7,5667,738) (8,2899,193) (6,4456,781) (6,7276,386) Trade receivable - net 22,123 64,662 2,285 1,775 109,372 40,520 2,456 1,349 Other current receivables - net 137,662 136,184 1,201,170 1,179,399 176,711 175,610 1,289,566 1,227,958 Total trade and other current receivables - net 159,785 200,846 1,203,455 1,181,174 286,083 216,130 1,292,022 1,229,307 The normal credit term granted by the Group ranges 30 days.

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31June 30, 2024 2020 As at December 31, 2023 2019 As at March 31June 30, 2024 2020 As at December 31, 2023 2019 Trade receivable Other parties 10,354 10,461 8,730 8,502 Construction work receivable - other companies - Receivable 14,125 13,032 11,192 10,605 Total 14,125 13,032 11,192 10,605 Less allowance for construction work 18,982 60,454 - - - Contractor receivable 353 2,036 - - 19,335 62,490 - - Total 29,689 72,951 8,730 8,502 Less the expected credit loss allowance doubtful accounts (7,5669,639) (8,2895,577) (6,4459,250) (6,7275,412) Net 22,123 64,662 2,285 1,775 4,486 7,455 1,942 5,193 Other current receivables Related parties 6 - - 1,691,967 1,622,566 Less the expected credit loss allowance - Related parties - - (542,416) (484,481) Net - - 1,149,551 1,138,085 37 37 922,977 873,612 Short-term other receivables 35,253 34,559 28,608 27,730 43,414 48,300 38,519 43,693 Advance payment for goods 2,673 3,261 1,107 1,107 12,900 37,905 12,900 37,886 Advance payment to contractors 10,154 14,686 - - 2,511 19,465 2,511 19,465 Cost to obtain contract 23,207 20,635 9,788 9,881 132,759 122,298 126,097 117,785 Other prepaid expenses 23,530 30,691 14,308 16,472 Suspense input tax 54,683 55,749 11,939 11,939 19,426 19,932 18,923 18,482 Other 21,859 10,329 13,751 2,268 37,454 43,596 21,260 26,402 Total 171,359 169,910 79,501 69,397 248,501 291,533 1,143,187 1,137,325 Less the expected credit loss allowance - for doubtful short-term receivables accounts receivable (33,69740,500) (33,72635,936) (27,88237,140) (28,08335,185) Net 137,662 136,184 51,619 41,314 Total other current receivables 137,662 136,184 1,201,170 1,179,399 208,001 255,597 1,106,047 1,102,140 Total trade and other current receivables, net 159,785 200,846 1,203,455 1,181,174 212,487 263,052 1,107,989 1,107,333 Changes in the expected credit loss allowance for doubtful trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at December 31, 2019 41,513 40,597 Effects of the adoption of TFRS 9 14,500 11,799 Balance as at January 1, 2024 42,015 519,291 2020 56,013 52,396 Add Increase during the period 205 57,935 801 338 Less Reversal during the period (9576,675) (4836,344) Balance as at March 31June 30, 2024 41,263 576,743 2020 50,139 46,390 The movement of the allowance for doubtful debts are follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements For the six-month period ended June 30, For the six-month period ended June 30, 2020 2019 2020 2019 Increase doubtful debts 801 276 338 276 Doubtful debts (Reversal) (6,675) - (6,344) - Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March 31June 30, 2024 2020 As at December 31, 2023 2019 As at March 31June 30, 2024 2020 As at December 31, 2023 2019 Trade receivable Related party: Overdue: Over 12 months - - - - - - - - Other parties: Within credit term 19,706 51,000 000 000 3,179 1,973 816 314 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 598 1,767 536 1,449 3 - 6 months 273 280 223 213 1,282 982 1,146 881 6 - 12 months 269 484 237 313 836 226 785 171 Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 8,230 8,084 7,909 7,790 14,125 13,032 11,192 10,605 Less the expected credit loss allowance for doubtful accounts (7,5669,639) (8,2895,577) (6,4459,250) (6,7275,412) Trade receivable - – net 22,123 64,662 2,285 1,775 4,486 7,455 1,942 5,193 Other current receivables - receivables, net 137,662 136,184 1,201,170 1,179,399 208,001 255,597 1,106,047 1,102,140 Total trade and other current receivables - receivables, net 159,785 200,846 1,203,455 1,181,174 212,487 263,052 1,107,989 1,107,333 The normal credit term granted by the Group ranges 30 days.

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31, 2024 2023 As at December 31, 2023 2022 As at March 31, 2024 2023 As at December 31, 2023 2022 Trade receivable Other parties 10,354 10,461 8,730 8,502 10,182 8,387 8,045 7,735 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 63,468 38,796 - - - Contractor receivable 353 2,036 349 2,530 - - 19,335 62,490 63,817 41,326 - - Total 29,689 72,951 8,730 8,502 73,999 49,713 8,045 7,735 Less the The expected credit loss allowance (7,5667,582) (8,2899,193) (6,4456,507) (6,7276,386) Net 22,123 64,662 2,285 1,775 66,417 40,520 1,538 1,349 Other current receivables Related parties 6 5 - - 1,691,967 1,622,566 1,450,900 1,322,553 Less the The expected credit loss allowance - Related parties - - (542,416185,127) (484,481142,079) Net - - 1,149,551 1,138,085 1,265,773 1,180,474 Short-term receivables 35,253 34,559 28,608 27,730 39,619 38,755 31,723 31,409 Advance payment for goods 2,673 3,261 1,107 12,378 11,744 1,980 1,107 Advance payment to contractors 10,154 14,686 20,073 29,461 - - Cost to obtain contract 23,207 20,635 9,788 9,881 17,303 17,789 10,295 10,494 Other prepaid expenses 23,530 30,691 14,308 16,472 56,369 57,719 22,078 24,319 Suspense input tax 54,683 55,749 11,939 11,939 50,059 44,392 12,790 9,169 Other 21,859 10,329 13,751 2,268 11,553 13,340 2,954 2,742 Total 171,359 169,910 79,501 69,397 207,354 213,200 81,820 79,240 Less the The expected credit loss allowance - short-term receivables (33,69738,013) (33,72637,590) (27,88231,896) (28,08331,756) Net 137,662 136,184 51,619 41,314 169,341 175,610 49,924 47,484 Total other current receivables 137,662 136,184 1,201,170 1,179,399 169,341 175,610 1,315,697 1,227,958 Total trade and other current receivables, net 159,785 200,846 1,203,455 1,181,174 235,758 216,130 1,317,235 1,229,307 Changes in the expected credit loss allowance trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at January 1, 2024 42,015 519,291 2023 46,783 180,221 Add Increase during the period 205 57,935 856 43,309 Less Reversal during the period (9572,044) (483) - Balance as at March 31, 2024 41,263 576,743 2023 45,595 223,530 Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March 31, 2024 2023 As at December 31, 2023 2022 As at March 31, 2024 2023 As at December 31, 2023 2022 Trade receivable Other parties: Within credit term 19,706 51,000 000 000 65,144 39,055 788 240 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 1,544 1,293 780 1,027 3 - 6 months 273 280 223 213 116 192 9 9 6 - 12 months 269 484 237 313 304 351 185 176 Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 6,891 8,822 6,283 6,283 73,999 49,713 8,045 7,735 Less the expected credit loss allowance (7,5667,582) (8,2899,193) (6,4456,507) (6,7276,386) Trade receivable - net 22,123 64,662 2,285 1,775 66,417 40,520 1,538 1,349 Other current receivables - net 137,662 136,184 1,201,170 1,179,399 169,341 175,610 1,315,697 1,227,958 Total trade and other current receivables - net 159,785 200,846 1,203,455 1,181,174 235,758 216,130 1,317,235 1,229,307 The normal credit term granted by the Group ranges 30 days.

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31September 30, 2024 2021 As at December 31, 2023 2020 As at March 31September 30, 2024 2021 As at December 31, 2023 2020 Trade receivable Other Related parties 10,354 10,461 8,730 8,502 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 5 - - - Contractor receivable 353 2,036 - - 19,335 62,490 - - Other parties 61,444 64,299 7,784 7,325 Total 29,689 72,951 8,730 8,502 61,444 64,299 7,784 7,325 Less the The expected credit loss allowance (7,5666,963) (8,2896,864) (6,4456,507) (6,7276,324) Net 22,123 64,662 2,285 1,775 54,481 57,435 1,277 1,001 Other current receivables Related parties 6 5 - - 1,691,967 1,622,566 Less the expected credit loss allowance - Related parties - - (542,416) (484,481) Net - - 1,149,551 1,138,085 37 1,070,689 1,044,797 Short-term other receivables 35,253 34,559 28,608 27,730 47,352 46,600 41,835 41,055 Advance payment for goods 2,673 3,261 1,107 1,107 5,173 8,953 2,222 2,240 Advance payment to contractors 10,154 14,686 9,703 149 - - Cost to obtain contract 23,207 20,635 9,788 9,881 9,520 13,441 5,274 7,590 Other prepaid expenses 23,530 30,691 14,308 16,472 Suspense input tax 54,683 55,749 11,939 11,939 30,203 28,102 29,102 27,295 Retention receivable 30,000 30,000 30,000 30,000 Other 21,859 10,329 13,751 2,268 40,219 36,439 13,825 14,386 Total 171,359 169,910 79,501 69,397 172,170 163,721 1,192,947 1,167,363 Less the The expected credit loss allowance - short-term other receivables (33,69745,407) (33,72643,320) (27,88241,732) (28,08340,108) Net 137,662 136,184 51,619 41,314 Total other current receivables 137,662 136,184 1,201,170 1,179,399 126,763 120,401 1,151,215 1,127,255 Total trade and other current receivables, receivables - net 159,785 200,846 1,203,455 1,181,174 181,244 177,836 1,152,492 1,128,256 Changes in the expected credit loss allowance trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at January 1, 2024 42,015 519,291 2021 50,184 46,432 Add Increase during the period 205 57,935 2,326 1,844 Less Reversal during the period (957140) (48337) Balance as at March 31September 30, 2024 41,263 576,743 2021 52,370 48,239 In Thousand Baht Consolidated Financial Statements Separate Financial Statements For the nine-month period ended September 30, For the nine-month period ended September 30, 2021 2020 2021 2020 The expected credit loss allowance increase during the period 2,326 8,134 1,844 6,590 The expected credit loss allowance (Reversal) during the period (140) (6,675) (37) (6,344) Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March 31, 2024 As at December 31, 2023 As at March 31, 2024 As at December 31, 2023 Trade receivable Other parties: Within credit term 19,706 51,000 000 000 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 3 - 6 months 273 280 223 213 6 - 12 months 269 484 237 313 Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 Less the expected credit loss allowance (7,566) (8,289) (6,445) (6,727) Trade receivable - net 22,123 64,662 2,285 1,775 Other current receivables - net 137,662 136,184 1,201,170 1,179,399 Total trade and other current receivables - net 159,785 200,846 1,203,455 1,181,174 The normal credit term granted by the Group ranges 30 days.Baht

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March December 31, 2024 2020 As at December 31, 2023 As at March 31, 2024 2019 As at December 31, 2023 2020 As at December 31, 2019 Trade receivable Other Related parties 10,354 10,461 8,730 8,502 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 7 - - - Contractor receivable 353 2,036 - - 19,335 62,490 - - Other parties 64,299 13,032 7,325 10,605 Total 29,689 72,951 8,730 8,502 64,299 13,032 7,325 10,605 Less the expected credit loss allowance for doubtful accounts (7,5666,864) (8,2895,577) (6,4456,324) (6,7275,412) Net 22,123 64,662 2,285 1,775 57,435 7,455 1,001 5,193 Other current receivables Related parties 6 - - 1,691,967 1,622,566 Less the expected credit loss allowance - Related parties - - (542,416) (484,481) Net - - 1,149,551 1,138,085 7 37 37 1,044,797 873,612 Short-term other receivables 35,253 34,559 28,608 27,730 46,600 48,300 41,055 43,693 Advance payment for goods 2,673 3,261 1,107 1,107 8,953 37,905 2,240 37,886 Advance payment to contractors 10,154 14,686 149 19,465 - - 19,465 Cost to obtain contract 23,207 20,635 9,788 9,881 13,341 122,298 7,490 117,785 Other prepaid expenses 23,530 30,691 14,308 16,472 Suspense input tax 54,683 55,749 11,939 11,939 28,102 19,932 27,295 18,482 Retention receivable 30,000 - 30,000 - Other 21,859 10,329 13,751 2,268 36,539 43,596 14,486 26,402 Total 171,359 169,910 79,501 69,397 163,721 291,533 1,167,363 1,137,325 Less the The expected credit loss allowance - short-term other receivables (33,6972019 : Allowance for doubtful accounts) (33,72643,320) (27,88235,936) (28,08340,108) (35,185) Net 137,662 136,184 51,619 41,314 Total other current receivables 137,662 136,184 1,201,170 1,179,399 120,401 255,597 1,127,255 1,102,140 Total trade and other current receivables, net 159,785 200,846 1,203,455 1,181,174 177,836 263,052 1,128,256 1,107,333 Changes in the expected credit loss allowance of the trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at December 31, 2019 41,513 40,597 Effects of the adoption of TFRS 9 14,500 11,799 Balance as at January 1, 2024 42,015 519,291 2020 56,013 52,396 Add Increase during the period 205 57,935 year 8,108 6,590 Less Reversal during the period year (95713,937) (48312,554) Balance as at March December 31, 2024 41,263 576,743 2020 50,184 46,432 In Thousand Baht Consolidated Financial Statements Separate Financial Statements For the years ended December 31, For the years ended December 31, 2020 2019 2020 2019 Increase the expected credit loss allowance 8,108 29,174 6,590 29,127 The expected credit loss allowance (Reversal) (13,937) (36) (12,554) (5) Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March December 31, 2024 2020 As at December 31, 2023 As at March 31, 2024 2019 As at December 31, 2023 2020 As at December 31, 2019 Trade accounts receivable Related party : Overdue: Over 12 months - - - - - - - - Other partiesparties : Within credit term 19,706 51,000 000 000 56,312 1,973 331 314 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 949 1,767 555 1,449 3 - 6 months 273 280 223 213 357 982 212 881 6 - 12 months 269 484 237 313 82 226 - 171 Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 6,599 8,084 6,227 7,790 64,299 13,032 7,325 10,605 Less the expected credit loss allowance (7,5666,864) (8,2895,577) (6,4456,324) (6,7275,412) Trade receivable - net 22,123 64,662 2,285 1,775 57,435 7,455 1,001 5,193 Other current receivables - receivables, net 137,662 136,184 1,201,170 1,179,399 120,401 255,597 1,127,255 1,102,140 Total trade and other current receivables - receivables, net 159,785 200,846 1,203,455 1,181,174 177,836 263,052 1,128,256 1,107,333 The normal credit term granted by the Group ranges 30 days.

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31, 2024 2022 As at December 31, 2023 2021 As at March 31, 2024 2022 As at December 31, 2023 2021 Trade receivable Other parties 10,354 10,461 8,730 8,502 8,647 8,426 7,274 7,518 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 16,127 15,159 - - - Contractor receivable 353 2,036 2,351 2,371 - - 19,335 62,490 18,478 17,530 - - Total 29,689 72,951 8,730 8,502 27,125 25,956 7,274 7,518 Less the The expected credit loss allowance (7,5667,899) (8,2897,313) (6,4456,322) (6,7276,415) Net 22,123 64,662 2,285 1,775 19,226 18,643 952 1,103 Other current receivables Related parties 6 5 - - 1,691,967 1,622,566 1,105,523 1,049,965 Less the The expected credit loss allowance - Related parties - - (542,41610,645) (484,4817,614) Net - - 1,149,551 1,138,085 1,094,878 1,042,351 Short-term other receivables 35,253 34,559 28,608 27,730 71,660 106,237 65,621 100,488 Advance payment for goods 2,673 3,261 1,107 1,107 3,182 2,978 1,737 1,899 Advance payment to contractors 10,154 14,686 - 32,738 8,964 23,758 - Cost to obtain contract 23,207 20,635 9,788 9,881 10,193 9,453 5,077 4,986 Other prepaid expenses 23,530 30,691 14,308 16,472 Suspense input tax 54,683 55,749 11,939 11,939 17,343 25,900 15,911 24,324 Other 21,859 10,329 13,751 2,268 45,095 43,390 13,298 13,893 Total 171,359 169,910 79,501 69,397 180,211 196,922 125,402 145,590 Less the The expected credit loss allowance - short-term other receivables (33,69738,892) (33,72638,980) (27,88233,905) (28,08334,681) Net 137,662 136,184 51,619 41,314 141,319 157,942 91,497 110,909 Total other current receivables 137,662 136,184 1,201,170 1,179,399 141,319 157,942 1,186,375 1,153,260 Total trade and other current receivables, net 159,785 200,846 1,203,455 1,181,174 160,545 176,585 1,187,327 1,154,363 Changes in the expected credit loss allowance trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at January 1, 2024 42,015 519,291 2022 46,293 48,710 Add Increase during the period 205 57,935 1,382 3,031 Less Reversal during the period (957884) (483869) Balance as at March 31, 2024 41,263 576,743 2022 46,791 50,872 Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements As at March 31, 2024 2022 As at December 31, 2023 2021 As at March 31, 2024 2022 As at December 31, 2023 2021 Trade receivable Other parties: Within credit term 19,706 51,000 000 000 16,811 15,817 235 195 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 1,370 1,701 736 938 3 - 6 months 273 280 223 213 622 1,487 20 13 6 - 12 months 269 484 237 313 1,669 371 - 140 Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 6,653 6,580 6,283 6,232 27,125 25,956 7,274 7,518 Less the expected credit loss allowance (7,5667,899) (8,2897,313) (6,4456,322) (6,7276,415) Trade receivable - net 22,123 64,662 2,285 1,775 19,226 18,643 952 1,103 Other current receivables - net 137,662 136,184 1,201,170 1,179,399 141,319 157,942 1,186,375 1,153,260 Total trade and other current receivables - net 159,785 200,846 1,203,455 1,181,174 160,545 176,585 1,187,327 1,154,363 The normal credit term granted by the Group ranges 30 days.

TRADE AND OTHER CURRENT RECEIVABLES. In Thousand Baht Consolidated Financial Statements Separate Financial Statements Note As at March 31, 2024 2021 As at December 31, 2023 2020 As at March 31, 2024 2021 As at December 31, 2023 2020 Trade receivable Other Related parties 10,354 10,461 8,730 8,502 Construction work receivable - other companies - Receivable for construction work 18,982 60,454 5 - - - Contractor receivable 353 2,036 - - 19,335 62,490 - - Other parties 68,957 64,299 7,407 7,325 Total 29,689 72,951 8,730 8,502 68,957 64,299 7,407 7,325 Less the The expected credit loss allowance (7,5666,746) (8,2896,864) (6,4456,286) (6,7276,324) Net 22,123 64,662 2,285 1,775 62,211 57,435 1,121 1,001 Other current receivables Related parties 6 5 - - 1,691,967 1,622,566 Less the expected credit loss allowance - Related parties - - (542,416) (484,481) Net - - 1,149,551 1,138,085 37 1,111,765 1,044,797 Short-term other receivables 35,253 34,559 28,608 27,730 47,004 46,600 41,526 41,055 Advance payment for goods 2,673 3,261 1,107 1,107 9,101 8,953 2,369 2,240 Advance payment to contractors 10,154 14,686 8,897 149 - - Cost to obtain contract 23,207 20,635 9,788 9,881 10,739 13,341 5,666 7,490 Other prepaid expenses 23,530 30,691 14,308 16,472 Suspense input tax 54,683 55,749 11,939 11,939 17,110 28,102 16,524 27,295 Retention receivable 30,000 30,000 30,000 30,000 Other 21,859 10,329 13,751 2,268 35,508 36,539 14,393 14,486 Total 171,359 169,910 79,501 69,397 158,359 163,721 1,222,243 1,167,363 Less the The expected credit loss allowance - short-term other receivables (33,69743,367) (33,72643,320) (27,88240,271) (28,08340,108) Net 137,662 136,184 51,619 41,314 Total other current receivables 137,662 136,184 1,201,170 1,179,399 114,992 120,401 1,181,972 1,127,255 Total trade and other current receivables, receivables - net 159,785 200,846 1,203,455 1,181,174 177,203 177,836 1,183,093 1,128,256 Changes in the expected credit loss allowance trade and other current receivables as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Balance as at January 1, 2024 42,015 519,291 2021 50,184 46,432 Add Increase during the period 205 57,935 49 162 Less Reversal during the period (957120) (48337) Balance as at March 31, 2024 41,263 576,743 2021 50,113 46,557 In Thousand Baht Consolidated Financial Statements Separate Financial Statements For the three-month period ended March 31, For the three-month period ended March 31, 2021 2020 2021 2020 The expected credit loss allowance increase during the period 49 363 162 338 The expected credit loss allowance (Reversal) during the period (120) (5,114) (37) (4,822) Aging analyses for trade accounts receivable were as follows: In Thousand Baht Consolidated Financial Statements Separate Financial Statements Trade receivable As at March 31, 2024 2021 As at December 31, 2023 2020 As at March 31, 2024 2021 As at December 31, 2023 Trade receivable 2020 Related party: Overdue: Over 12 months - - - - - - - - Other parties: Within credit term 19,706 51,000 000 000 61,013 56,312 484 331 Overdue: Less than 3 months 2,556 13,258 1,526 1,089 1,159 949 539 555 3 - 6 months 273 280 223 213 000 000 000 212 6 - 12 months 269 484 237 313 8 82 8 - Over 12 months 6,885 7,225 6,145 6,471 29,689 72,951 8,730 8,502 6,575 6,599 6,227 6,227 68,957 64,299 7,407 7,325 Less the expected credit loss allowance (7,5666,746) (8,2896,864) (6,4456,286) (6,7276,324) Trade receivable - net 22,123 64,662 2,285 1,775 62,211 57,435 1,121 1,001 Other current receivables - net 137,662 136,184 1,201,170 1,179,399 114,992 120,401 1,181,972 1,127,255 Total trade and other current receivables - net 159,785 200,846 1,203,455 1,181,174 177,203 177,836 1,183,093 1,128,256 The normal credit term granted by the Group ranges 30 days.