| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yaoming Chem | China national standards | MT | 833.46 | USD | 20251129 |
| Wanhua Yantai | China national standards | MT | 791.08 | USD | 20251129 |
| Jinan Qi Mat | China national standards | MT | 1031.23 | USD | 20251129 |
| Shandong Yeyang Chem | China national standards | MT | 819.34 | USD | 20251129 |
| Wanhua Chem | China national standards | MT | 1031.23 | USD | 20251129 |
| Wanhua Chem | China national standards | MT | 1045.36 | USD | 20251129 |
| Wanhua Chem | China national standards | MT | 1073.61 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 1059.49 | USD | 20251128 |
| Sinopec | China national standards | MT | 791.08 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1144.25 | USD | 20251128 |