| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Yantai | China national standards | MT | 791.08 | USD | 20251128 |
| Sinopec | China national standards | MT | 791.08 | USD | 20251128 |
| Wanhua Yantai | China national standards | MT | 826.4 | USD | 20251128 |
| Shandong Laya Chem | China national standards | MT | 791.08 | USD | 20251128 |
| Shandong Aite Chem | China national standards | MT | 889.97 | USD | 20251128 |
| Shandong Aite Chem | China national standards | MT | 889.97 | USD | 20251128 |
| Shandong Aite Chem | China national standards | MT | 889.97 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1059.49 | USD | 20251128 |
| Qingdao Shengze Chem | China national standards | MT | 1045.36 | USD | 20251128 |
| Wanhua Chem | China national standards | MT | 1031.23 | USD | 20251128 |