| No | Customer |
| 1. | Bangkok Industrial Gas Co.,Ltd. (BIG) |
| 2. | Glow Energy Public Co.,Ltd. (Glow) |
| 3. | GHECO-One Company, Ltd. (Glow) |
| 4. | Glow SPP3 Company Limited (Glow) |
| 5. | Next Tech Engineering & Manacement Co.,Ltd. (Next tech) |
| 6. | Pure Biodiesel Co.,Ltd. PBO(rpc) |
| 7. | Polytechnology Co.,Ltd. (PLT) |
| 8. | PTT Global Chemical Public Company Limited (PTT) |
| 9. | Bangkok Polyethylene Publice Co.,Ltd. (PTT BPE) |
| 10. | Thai Ethanolamines Co.,Ltd (PTT TEA) |
| 11. | Toc Glycol Co.,Ltd. (PTT Tocgc) |
| 12. | Sakc Chaisidhi Co., Ltd. |
| 13. | PTT Polyethelene (PTT TPE) |
| 14. | Thai Plastic and Chemical Plc. |
| 15. | TPT Petrochemical Plc. |
| 16. | Thai Industrial Gases Public Company Limited |
| 17. | Toyo-Thai Corporation Public Company Limited |
| 18. | Thai Film Industries Public Company Limited |
| 19. | Thai Woo Ree Engineering Co., Ltd. |
| 20. | Linde Thailand Public Company Limited |
| 21. | KTK Engineering & Construction Co., Ltd. |
| 22. | Praxair (Thailand) Co., Ltd. |
| 23. | TIG Hyco Limited |
| 24. | Munkong Steel Co., Ltd. (MKS) |
| 25. | Thai Oleochemicals Co., Ltd. (TOL) |
