| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 1641.06 | USD | 20251211 |
| Shandong Yihe Chem | China national standards | MT | 1641.06 | USD | 20251211 |
| Shandong Yihe Chem | China national standards | MT | 1639.51 | USD | 20251210 |
| Shandong Yihe Chem | China national standards | MT | 1639.51 | USD | 20251210 |
| Shandong Yihe Chem | China national standards | MT | 1639.04 | USD | 20251209 |
| Shandong Yihe Chem | China national standards | MT | 1639.04 | USD | 20251209 |
| Shandong Yihe Chem | China national standards | MT | 1639.25 | USD | 20251208 |
| Shandong Yihe Chem | China national standards | MT | 1639.25 | USD | 20251208 |
| Shandong Yihe Chem | China national standards | MT | 1639.6 | USD | 20251207 |
| Shandong Yihe Chem | China national standards | MT | 1639.6 | USD | 20251207 |