| Vendor | Spec | Unit | Price | Currency | Date |
| CNOOC | China national standards | MT | 565.06 | USD | 20251128 |
| Shandong Qiangsen Chem | China national standards | MT | 508.55 | USD | 20251128 |
| Shandong Jinwen Chem | China national standards | MT | 508.55 | USD | 20251128 |
| Qingdao Shengze Chem | Polyester Resin Grade | MT | 529.74 | USD | 20251128 |
| Shandong Zhenkun | China national standards | MT | 607.44 | USD | 20251128 |
| Sinopec | China national standards | MT | 678.07 | USD | 20251128 |
| Shandong LuoHeng Chem | China national standards | MT | 579.19 | USD | 20251128 |
| Beijing Yanshan Petro | China national standards | MT | 601.79 | USD | 20251128 |
| Shandong Xingpeng Chem | Polyester Resin Grade | MT | 512.79 | USD | 20251128 |
| Qingdao Shengze Chem | China national standards | MT | 529.74 | USD | 20251128 |