| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1215.39 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 1264.86 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 1158.86 | USD | 20251201 |
| Shandong Qiangsen Chem | China national standards | MT | 1116.47 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 1554.57 | USD | 20251201 |
| Shandong Jinling Chem | China national standards | MT | 1059.94 | USD | 20251201 |
| Shandong Jinling Chem | China national standards | MT | 1074.07 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 1483.91 | USD | 20251201 |
| Shandong Aite Chem | China national standards | MT | 1455.65 | USD | 20251201 |
| Shandong Jinling Chem | China national standards | MT | 1144.73 | USD | 20251201 |