| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 515.62 | USD | 20251128 |
| Shandong Yihe Chem | China national standards | MT | 536.81 | USD | 20251128 |
| Shandong Yihe Chem | China national standards | MT | 536.88 | USD | 20251127 |
| Shandong Yihe Chem | China national standards | MT | 515.69 | USD | 20251127 |
| Shandong Yihe Chem | China national standards | MT | 515.57 | USD | 20251126 |
| Shandong Yihe Chem | China national standards | MT | 536.75 | USD | 20251126 |
| Shandong Yihe Chem | China national standards | MT | 536.53 | USD | 20251125 |
| Shandong Yihe Chem | China national standards | MT | 515.35 | USD | 20251125 |
| Shandong Yihe Chem | China national standards | MT | 536.37 | USD | 20251124 |
| Shandong Yihe Chem | China national standards | MT | 515.19 | USD | 20251124 |