| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Hi-tech | China national standards | MT | 1238.09 | USD | 20260410 |
| Dongying Hi-tech | China national standards | MT | 1238.18 | USD | 20260409 |
| Dongying Hi-tech | China national standards | MT | 1237.62 | USD | 20260408 |
| Dongying Hi-tech | China national standards | MT | 1234.5 | USD | 20260407 |
| Dongying Hi-tech | China national standards | MT | 1233.15 | USD | 20260403 |
| Dongying Hi-tech | China national standards | MT | USD | 20260402 | |
| Dongying Hi-tech | China national standards | MT | USD | 20260401 | |
| Dongying Hi-tech | China national standards | MT | USD | 20260331 | |
| Dongying Hi-tech | China national standards | MT | USD | 20260330 | |
| Dongying Hi-tech | China national standards | MT | USD | 20260327 |