| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hualu | China national standards | MT | 1070.24 | USD | 20260116 |
| Shandong Hualu | China national standards | MT | 1038.58 | USD | 20260104 |
| Shandong Hualu | China national standards | MT | 1038.58 | USD | 20260104 |
| Shandong Hualu | China national standards | MT | 1038.58 | USD | 20260104 |
| Shandong Hualu | China national standards | MT | 1024.36 | USD | 20251231 |
| Shandong Hualu | China national standards | MT | 1024.36 | USD | 20251231 |
| Jinan Jinrihe Chem | China national standards | MT | 933.71 | USD | 20251211 |
| Jinan Aochen Chem | China national standards | MT | 1089.32 | USD | 20251211 |
| Shandong Aite Chem | China national standards | MT | 1103.47 | USD | 20251211 |
| Jinan Xinbo Chem | China national standards | MT | 1131.77 | USD | 20251211 |