Reference

1. Aditya Birla Chemicals (Thailand) Limited
2. Bayer Thai Co.,Ltd
3. Dow Chemicals Group
4. Egco Engineering & Service Co.,Ltd
5. Glow Energy Public Co.,Ltd.
6. Indorama Petrochem Limited.
7. IRPC Public Co.,Ltd
8. PTT Global Chemical PCL
9. PTTEP Public Co.,Ltd
10. SCG Group
11. Star Petroleum Refining Co Ltd
12. Thai Industrial Gases Public Co.,Ltd
13. Thai Oil Public Company
14. Thai Plastic and Chemicals Public Company
15. Thai Polycarbonate / Polyacetal Co.,Ltd
16. The Bangchak Petroleum Public Co.,Ltd
17. Toyo-Thai Corp
18. Vinythai Public Company
19. Etc.