- 54 - Unit : Million Baht Consolidated financial statements Customer contracts and the related Intangible assets Production Computer customer Right to use Right to use under Note licence fees Software relationships pipe rack others development Total Accumulated amortisation and allowance for impairment As at January 1, 2020 (2,866) (2,989) (137) (418) (1,792) (22) (8,224) Effect from first-time adoption of new accounting policy - - - 345 - - 345 Amortisation charge for the year (299) (374) - (2) (71) - (746) Transfers - - - 19 253 - 272 Disposals - 4 - - - - 4 Effect from exchange differences on translating financial statements - (10) (1) - (45) - (56) As at December 31, 2020 and January 1, 2021 (3,165) (3,369) (138) (56) (1,655) (22) (8,405) Amortisation charge for the year (417) (411) - - (79) - (907) Business acquisition 4 (23) (2,407) (6,457) - (6,913) - (15,800) Disposal - 334 - - 226 - 560 Loss from impairment assets - (15) - - - - (15) Reversal of impairment loss - - - - 734 - 734 Effect from exchange differences on translating financial statements - (7) (14) - (88) - (109) As at December 31, 2021 (3,605) (5,875) (6,609) (56) (7,775) (22) (23,942) Net book value As at January 1, 2020 4,841 2,008 - 34 532 655 8,070 As at December 31, 2020 and January 1, 2021 5,644 2,098 - - 422 428 8,592 As at December 31, 2021 5,352 3,972 34,298 - 42,395 484 86,501 Security As at December 31, 2021, net book value of intangible assets of the Group of CNY 48 million (equivalent to Baht 251 million) were registered to secured loan from financial institutions (see Note 19.2). PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED AND SUBSIDIARIES FOR THE YEAR ENDED DECEMBER 31, 2021 NOTES TO THE FINANCIAL STATEMENTS PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2021 286
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