| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chem | China national standards | MT | 1156.13 | USD | 20251210 |
| Shandong Huize Chem | China national standards | MT | 1155.96 | USD | 20251208 |
| Shandong Huize Chem | China national standards | MT | 1155.47 | USD | 20251202 |
| Shandong Huize Chem | China national standards | MT | 1155.55 | USD | 20251128 |
| Shandong Huize Chem | China national standards | MT | 1154.31 | USD | 20251113 |
| Shandong Huize Chem | China national standards | MT | 1154.29 | USD | 20251111 |
| Shandong Huize Chem | China national standards | MT | 1153.44 | USD | 20251023 |
| Shandong Huize Chem | China national standards | MT | 1152.19 | USD | 20251015 |
| Shandong Huize Chem | China national standards | MT | 1150.46 | USD | 20251009 |