| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chem | Industrial Grade | MT | 551.21 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 508.81 | USD | 20251210 |
| Shandong Aite Chem | China national standards | MT | 494.68 | USD | 20251210 |
| Shandong Shuojia Chem | Polyester Grade | MT | 551.21 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 491.85 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 491.85 | USD | 20251210 |
| Shandong Huize Chem | Polyester Resin Grade | MT | 607.75 | USD | 20251210 |
| CNPC | China national standards | MT | 637.43 | USD | 20251210 |
| Jinan Qi Mat | China national standards | MT | 491.85 | USD | 20251210 |
| Beijing Yanshan Petro | China national standards | MT | 602.09 | USD | 20251210 |