GC_ONE REPORT 2021_ENG

COMPANY INFORMATION INVESTOR RELATION DEPARTMENT Tel : + 66 (0) 2265 8400 ext. 8172, 8665, 8513, 8533, 8534 Email : ir@pttgcgroup.com HEAD OFFICE 555/1 Energy Complex, Building A, 14th-18th Floor Vibhavadi Rangsit Road, Chatuchak Sub-District, Chatuchak District, Bangkok 10900 Tel : +66 (0) 2 265-8400 Fax : 66 (0) 2 265-8500 CORPORATE GOVERNANCE DEPARTMENT Tel : +66 (0) 2 265-8645, +66 (0) 2 140-8759 Email : cg@pttgcgroup.com BRANCH 1 RAYONG OFFICE 59 Ratniyom Road, Noen-Phra Sub-District, Mueang Rayong District, Rayong Province 21150 Tel : +66 (0) 3899-4000 Fax : +66 (0) 3899-4111 NUMBER AND VALUE : As at December 31, 2021, the Company’s registered share capital was of Baht 45,088,491,170 comprising of 4,508,849,117 common shares at a par value of Baht 10 per share. Paid-up capital was Baht 45,088,491,170 ESTABLISHMENT : October 19, 2011 FIRST DAY TRADE ON THE SET: October 21, 2011 NAME : PTT Global Chemical Public Company Limited INITIAL : PTTGC WEBSITE : www.pttgcgroup.com REGISTERED NUMBER : 0107554000267 NUMBER OF EMPLOYEES : 10,819 as of December 31, 2021 BUSINESS STRUCTURE AND VALUE CHAIN : Group Performance Center - Refinery & Shared Facilities : Group Performance Center - Aromatics : Group Performance Center - Olefins : EO-Based Performance Business Unit : Phenol Business Unit : Polymers Business Unit : Green Chemicals Business Unit : Performance Materials and Chemicals : Services & Others CONTACT 32 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2021

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