| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.63 | USD | 20250928 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.63 | USD | 20250928 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.63 | USD | 20250927 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.63 | USD | 20250926 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.2 | USD | 20250924 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.2 | USD | 20250923 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.91 | USD | 20250922 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.77 | USD | 20250921 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.77 | USD | 20250920 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 421.77 | USD | 20250919 |