| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chem | China national standards | MT | 1111.92 | USD | 20251011 |
| Jinan Pulaihua Chem | China national standards | MT | 1111.92 | USD | 20251011 |
| Jinan Pulaihua Chem | China national standards | MT | 1111.78 | USD | 20250923 |
| Jinan Pulaihua Chem | China national standards | MT | 1111.78 | USD | 20250923 |
| Jinan Pulaihua Chem | China national standards | MT | 1111.35 | USD | 20250918 |
| Jinan Pulaihua Chem | China national standards | MT | 1111.35 | USD | 20250918 |