| Vendor | Spec | Unit | Price | Currency | Date |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 635.45 | USD | 20251117 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 607.21 | USD | 20251117 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 607.13 | USD | 20251114 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 635.37 | USD | 20251114 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 635.01 | USD | 20251113 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 606.79 | USD | 20251113 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 607.06 | USD | 20251112 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 635.3 | USD | 20251112 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 635.01 | USD | 20251106 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 606.79 | USD | 20251106 |