| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 988.78 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1108.85 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1257.17 | USD | 20251202 |
| Shandong Hongyang Chem | China national standards | MT | 1130.04 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 1101.79 | USD | 20251202 |
| Shandong Fusheng | China national standards | MT | 819.28 | USD | 20251202 |
| Shandong Jinshenrun Chem | China national standards | MT | 904.03 | USD | 20251202 |
| Shandong Huize Chem | China national standards | MT | 1045.29 | USD | 20251202 |
| Shandong Fusheng | China national standards | MT | 819.28 | USD | 20251202 |
| Shandong Huize Chem | China national standards | MT | 1045.29 | USD | 20251202 |