| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chem | China national standards | MT | 551.74 | USD | 20251211 |
| Qingdao Shengze Chem | China national standards | MT | 492.32 | USD | 20251211 |
| Shandong Jinshenrun Chem | China national standards | MT | 565.88 | USD | 20251211 |
| Sinopec | China national standards | MT | 551.74 | USD | 20251211 |
| Shandong Hualu | Polyester Resin Grade | MT | 492.32 | USD | 20251211 |
| Qingdao Shengze Chem | China national standards | MT | 492.32 | USD | 20251211 |
| Shandong Yushuo Chem | Polyester Grade | MT | 551.74 | USD | 20251211 |
| Sinopec | China national standards | MT | 664.91 | USD | 20251211 |
| Qingdao Shengze Chem | China national standards | MT | 492.32 | USD | 20251211 |
| Wuhan Hengjiu Chem | China national standards | MT | 679.06 | USD | 20251211 |