| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.21 | USD | 20251008 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.21 | USD | 20251007 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.21 | USD | 20251001 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.21 | USD | 20250930 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 422.01 | USD | 20250929 |
| 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 |