| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangxi Lee & Man Chemical Limited | China national standards | MT | 324.69 | USD | 20251107 |
| Jiangxi Lee & Man Chemical Limited | China national standards | MT | 324.09 | USD | 20251016 |
| Jiangxi Lee & Man Chemical Limited | China national standards | MT | 323.68 | USD | 20250923 |