| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chem | China national standards | MT | 591.15 | USD | 20251011 |
| Jinan Pulaihua Chem | China national standards | MT | 563.0 | USD | 20251011 |
| Jinan Pulaihua Chem | China national standards | MT | 562.93 | USD | 20250923 |
| Jinan Pulaihua Chem | China national standards | MT | 591.07 | USD | 20250923 |
| Jinan Pulaihua Chem | China national standards | MT | 562.71 | USD | 20250918 |
| Jinan Pulaihua Chem | China national standards | MT | 590.84 | USD | 20250918 |