GC_ONE REPORT 2021_ENG

List of the Board of Directors in Subsidiaries/Joint Ventures/Affiliates (As of 31 December 2021) No. Name - Surname GC Subsidiaries Joint Ventures/Affiliates GGC GCA Corp. GC Inter GCA GCI GC BV GPSC PTT OR PTTT PTT Tank 1 Mr. Piyasvasti Amranand 2 Mr. Apisak Tantivorawong 3 Mr. Don Wasantapruek 4 Professor Somkit Lertpaithoon 5 Mr. Grisada Boonrach 6 Mrs. Watanan Petersik 7 Mr. Pakorn Nilprapunt 8 Lieutenant General Nithi Chungcharoen 9 Mr. Chansin Treenuchagron 10 Mr. Noppadol Pinsupa 11 Mr. Disathat Panyarachun 12 Mr. Sarawut Kaewtathip 13 M.L. Peekthong Thongyai 14 Mrs. Pantip Sripimol 15 Mr. Kongkrapan Intarajang ATTACHMENT 2 DETAILS OF DIRECTORS OF SUBSIDIARIES Remarks: = Chairman = Director = Executive Subsidiaries GGC = Global Green Chemicals Public Company Limited GCA Corp. = PTTGC America Corporation GC Inter = PTTGC International Private Limited GCA = PTTGC America LLC GCI = GC International Corporation GC BV = PTTGC International (Netherlands) B.V. Joint Ventures/Affiliates GPSC = Global Power Synergy Public Company Limited) PTT = PTT Public Company Limited OR = PTT Oil and Retail Business Public Company Limited PTTT = PTT International Trading Pte Ltd. PTT Tank = PTT Tank Terminal Company Limited 376 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2021

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