| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinquanjin | N220 | MT | 253.32 | USD | 20251006 |
| Jinan Jinquanjin | N220 | MT | 253.32 | USD | 20251004 |
| Jinan Jinquanjin | 600 mesh | MT | 239.25 | USD | 20251004 |
| Jinan Jinquanjin | China national standards | MT | 1899.94 | USD | 20251004 |
| Jinan Jinquanjin | China national standards | MT | 1899.94 | USD | 20250930 |
| Jinan Jinquanjin | 600 mesh | MT | 239.25 | USD | 20250930 |
| Jinan Jinquanjin | N220 | MT | 253.32 | USD | 20250930 |
| Jinan Jinquanjin | N220 | MT | 253.2 | USD | 20250929 |
| Jinan Jinquanjin | 600 mesh | MT | 239.14 | USD | 20250929 |
| Jinan Jinquanjin | China national standards | MT | 1899.03 | USD | 20250929 |