1. GC Glycol Company Limited List of Directors Position 1. Mr. Wiboon Chuchepchunkamon Chairman 2. Mr. Saroj Putthammawong Director 3. Mr. Pukpong Wungrattanasopon Director 4. Mrs. Chananchida Wiboonkanarak Director 5. Mr. Vitaya Pinmuangngarm Director/ Managing Director 2. PTT Phenol Company Limited List of Directors Position 1. Mr. Wiboon Chuchepchunkamon Chairman 2. Mr. Saroj Putthammawong Director 3. Mr. Pukpong Wungrattanasopon Director 4. Mrs. Chananchida Wiboonkanarak Director 5. Mr. Paisarn Sarapee Director/ Managing Director 3. GC Styrenics Company Limited List of Directors Position 1. Mr. Pornsak Mongkoltrirat Chairman 2. Mr. Anutin Chuaypen Director 3. Mr. Vitaya Pinmuangngarm Director 4. Mr. Panchoak Auetanapa Director/ Managing Director 4. Solution Creation Company Limited List of Directors Position 1. Mr. Wiboon Chuchepchunkamon Chairman 2. Mr. Pornsak Mongkoltrirat Director 3. Mrs. Warawan Tippawanich Director 4. Mrs. Chananchida Wiboonkanarak Director 5. Mr. Weerayuth Lorsathian Director/ Managing Director List of Directors in Subsidiaries wholly 100% owned by GC (As of 1 February 2022) 5. NPC Safety and Environmental Service Company Limited List of Directors Position 1. Mr. Varit Namwong Chairman 2. Mr. Khomson Piyawattanaviroj Director 3. Mr. Anutin Chuaypen Director 4. Mr. Kridsada Prasertsuko Director/ Managing Director 6. PTTGC International Private Limited List of Directors Position 1. Mr. Kongkrapan Intarajang Chairman 2. Miss Pattaralad Sa-ngasang Director 3. Mrs. Warawan Tippawanich Director 4. Mr. Narongsak Jivakanun Director/ Managing Director 7. PTTGC America Corporation List of Directors Position 1. Mr. Kongkrapan Intarajang Chairman 2. Mr. Varit Namwong Director 3. Miss Pattaralada Sa-ngasang Director 4. Mrs. Warawan Tippawanich Director 5. Mr. Narongsak Jivakanun Director/ Managing Director 8. GC Marketing Solutions Company Limited List of Directors Position 1. Mr. Varit Namwong Director 2. Mr. Wiboon Chuchepchunkamon Director 3. Mr. Pornsak Mongkoltrirat Director 4. Mr. Saroj Putthammawong Director 5. Mr. Thitipol Artsanchorn Director/ Managing Director 378 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2021
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