| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 514.99 | USD | 20251123 |
| Shandong Yihe Chem | China national standards | MT | 536.16 | USD | 20251123 |
| Shandong Yihe Chem | China national standards | MT | 514.99 | USD | 20251121 |
| Shandong Yihe Chem | China national standards | MT | 536.16 | USD | 20251121 |
| Shandong Yihe Chem | China national standards | MT | 514.77 | USD | 20251120 |
| Shandong Yihe Chem | China national standards | MT | 535.93 | USD | 20251120 |
| Shandong Yihe Chem | China national standards | MT | 536.18 | USD | 20251119 |
| Shandong Yihe Chem | China national standards | MT | 515.01 | USD | 20251119 |
| Shandong Yihe Chem | China national standards | MT | 515.13 | USD | 20251118 |
| Shandong Yihe Chem | China national standards | MT | 536.3 | USD | 20251118 |