| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chem | China national standards | MT | 1102.43 | USD | 20251210 |
| Shandong Huize Chem | China national standards | MT | 1102.26 | USD | 20251208 |
| Shandong Huize Chem | China national standards | MT | 1101.79 | USD | 20251202 |
| Shandong Huize Chem | China national standards | MT | 1101.87 | USD | 20251128 |
| Shandong Huize Chem | China national standards | MT | 1100.68 | USD | 20251113 |
| Shandong Huize Chem | China national standards | MT | 1100.67 | USD | 20251111 |
| Shandong Huize Chem | China national standards | MT | 1099.86 | USD | 20251023 |
| Shandong Huize Chem | China national standards | MT | 1098.67 | USD | 20251015 |
| Shandong Huize Chem | China national standards | MT | 1097.02 | USD | 20251009 |
| Shandong Huize Chem | China national standards | MT | 1096.24 | USD | 20250926 |