| Vendor | Spec | Unit | Price | Currency | Date |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 890.47 | USD | 20251205 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 890.67 | USD | 20251204 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 890.41 | USD | 20251203 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 889.91 | USD | 20251202 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 890.35 | USD | 20251201 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 889.97 | USD | 20251128 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 890.09 | USD | 20251127 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 889.88 | USD | 20251126 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 889.5 | USD | 20251125 |
| Tangshan Hua Yi Industrial Co., Ltd. | China national standards | MT | 889.24 | USD | 20251124 |