| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1434.55 | USD | 20251203 |
| Shandong Hongyang Chem | China national standards | MT | 1433.74 | USD | 20251202 |
| Shandong Hongyang Chem | China national standards | MT | 1433.74 | USD | 20251202 |
| Shandong Hongyang Chem | China national standards | MT | 1433.74 | USD | 20251202 |
| Shandong Hongyang Chem | China national standards | MT | 1434.45 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1434.45 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1434.45 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1433.84 | USD | 20251128 |
| Shandong Hongyang Chem | China national standards | MT | 1433.84 | USD | 20251128 |
| Shandong Hongyang Chem | China national standards | MT | 1433.84 | USD | 20251128 |