| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chem | China national standards | MT | 973.81 | USD | 20251118 |
| Shandong Laya Chem | China national standards | MT | 974.36 | USD | 20251117 |
| Shandong Laya Chem | China national standards | MT | 974.23 | USD | 20251115 |
| Shandong Laya Chem | China national standards | MT | 974.23 | USD | 20251115 |
| Shandong Laya Chem | China national standards | MT | 973.68 | USD | 20251113 |
| Shandong Laya Chem | China national standards | MT | 974.12 | USD | 20251112 |
| Shandong Laya Chem | China national standards | MT | 973.67 | USD | 20251111 |
| Shandong Laya Chem | China national standards | MT | 973.67 | USD | 20251111 |
| Shandong Laya Chem | China national standards | MT | 973.81 | USD | 20251110 |
| Shandong Laya Chem | China national standards | MT | 974.08 | USD | 20251108 |