| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 690.45 | USD | 20251016 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 704.54 | USD | 20251016 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 690.19 | USD | 20251015 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 704.02 | USD | 20251014 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 711.06 | USD | 20251014 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 689.67 | USD | 20251011 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 703.75 | USD | 20251010 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 801.67 | USD | 20251009 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 703.68 | USD | 20251005 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 703.68 | USD | 20250930 |