| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | Industrial Grade | MT | 15379.19 | USD | 20251123 |
| Shandong Yihe Chem | China national standards | MT | 11005.29 | USD | 20251123 |
| Shandong Yihe Chem | Industrial Grade | MT | 15379.19 | USD | 20251121 |
| Shandong Yihe Chem | China national standards | MT | 11005.29 | USD | 20251121 |
| Shandong Yihe Chem | Industrial Grade | MT | 15372.68 | USD | 20251120 |
| Shandong Yihe Chem | China national standards | MT | 11000.63 | USD | 20251120 |
| Shandong Yihe Chem | Industrial Grade | MT | 15379.84 | USD | 20251119 |
| Shandong Yihe Chem | China national standards | MT | 11005.76 | USD | 20251119 |
| Shandong Yihe Chem | China national standards | MT | 11008.24 | USD | 20251118 |
| Shandong Yihe Chem | Industrial Grade | MT | 15383.31 | USD | 20251118 |