| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 706.67 | USD | 20251203 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 706.27 | USD | 20251202 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 706.27 | USD | 20251202 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 706.32 | USD | 20251130 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 706.32 | USD | 20251128 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 706.32 | USD | 20251128 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 706.42 | USD | 20251127 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 705.5 | USD | 20251119 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 719.77 | USD | 20251118 |
| Henan Zhongyuan Dahua Group Co., Ltd. | China national standards | MT | 720.08 | USD | 20251115 |