GC One Report 2023 [EN]

PTT Global Chemical Public Company Limited and its Subsidiaries For the year ended 31 December 2023 PTT Global Chemical Public Company Limited and its Subsidiaries Notes to the financial statements For the year ended 31 December 2023 15 These notes form an integral part of the financial statements. The financial statements issued for Thai statutory and regulatory reporting purposes are prepared in the Thai language. These English language financial statements have been prepared from the Thai language statutory financial statements, and were approved and authorised for issue by the Board of Directors on 12 February 2024. 1 General information PTT Global Chemical Public Company Limited, the “Company”, is incorporated in Thailand and was listed on the Stock Exchange of Thailand on 19 October 2011. The Company’s registered offices are as follows: Head Office : 555/1, Energy Complex, Building A, 18th Floor, Vibhavadi-Rangsit Road, Chatuchak, Bangkok, Thailand Branch 1 (Rayong office Branch) : 59, Radniyom Road, Tambon Noenphra, Amphoe Mueang Rayong, Rayong, Thailand Branch 2 (Olefin 1 Branch) : 14, I-1 Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 3 (Olefin 2 Branch) : 9, I-4 Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 4 (Aromatics 1 Branch) : 4, I-2 Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 5 (Aromatics 2 Branch) : 98/9, Rayong 3191 Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 6 (Refining Branch) : 8, I-8 Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 7 (Jetty and Buffer Tank Farm Branch) : 19, Rong Pui Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 8 (Aromatics reserve Branch) : 11, I-4 Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 9 (Lab Service Center Branch) : 24/9, Pakorn Songkrao-Rat Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 10 (GC 10 Branch) : 555/1, Energy Complex, Building A, 1st, 9th, 14th and 16th - 17th Floor, Vibhavadi-Rangsit Road, Chatuchak, Bangkok, Thailand Branch 11 (Olefin 3 Branch) : 8, Phadang Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 12 (Polyethylene Branch) : 8, Map Ta Phut Industrial Estate, I-10 Road, Tambon Map Ta Phut, Amphoe Mueang Rayong, Rayong, Thailand Branch 13 (Innoplus Solution Center Branch) : 83/9-10, Moo 5, Tambon Tabma, Amphoe Mueang Rayong, Rayong, Thailand 259 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2023

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