| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 515.06 | USD | 20251113 |
| Shandong Yihe Chem | China national standards | MT | 515.3 | USD | 20251112 |
| Shandong Yihe Chem | China national standards | MT | 536.47 | USD | 20251112 |
| Shandong Yihe Chem | China national standards | MT | 536.22 | USD | 20251111 |
| Shandong Yihe Chem | China national standards | MT | 515.06 | USD | 20251111 |
| Shandong Yihe Chem | China national standards | MT | 515.13 | USD | 20251110 |
| Shandong Yihe Chem | China national standards | MT | 536.3 | USD | 20251110 |
| Shandong Yihe Chem | China national standards | MT | 515.27 | USD | 20251109 |
| Shandong Yihe Chem | China national standards | MT | 536.45 | USD | 20251109 |
| Shandong Yihe Chem | China national standards | MT | 515.27 | USD | 20251107 |