| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 536.6 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 515.42 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 515.42 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 515.35 | USD | 20251116 |
| Shandong Yihe Chem | China national standards | MT | 536.53 | USD | 20251116 |
| Shandong Yihe Chem | China national standards | MT | 536.53 | USD | 20251115 |
| Shandong Yihe Chem | China national standards | MT | 515.35 | USD | 20251115 |
| Shandong Yihe Chem | China national standards | MT | 515.35 | USD | 20251114 |
| Shandong Yihe Chem | China national standards | MT | 536.53 | USD | 20251114 |
| Shandong Yihe Chem | China national standards | MT | 515.06 | USD | 20251113 |