| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 529.06 | USD | 20251101 |
| Qingdao Shengze Chem | Polyester Grade | MT | 529.06 | USD | 20251101 |
| Qingdao Shengze Chem | China national standards | MT | 529.06 | USD | 20251101 |
| Lihuayi Weiyuan Chem | China national standards | MT | 578.44 | USD | 20251101 |
| Shandong Qiangsen Chem | China national standards | MT | 507.9 | USD | 20251101 |
| Shandong Jinwen Chem | China national standards | MT | 507.9 | USD | 20251101 |
| CNPC | China national standards | MT | 636.29 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 627.82 | USD | 20251101 |
| Beijing Yanshan Petro | China national standards | MT | 634.88 | USD | 20251101 |
| Sinopec | China national standards | MT | 634.88 | USD | 20251101 |