| Vendor | Spec | Unit | Price | Currency | Date |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 635.63 | USD | 20251126 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 607.38 | USD | 20251126 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 607.12 | USD | 20251125 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 635.36 | USD | 20251125 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 634.92 | USD | 20251121 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 606.7 | USD | 20251121 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 634.95 | USD | 20251119 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 606.73 | USD | 20251119 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 606.86 | USD | 20251118 |
| Zaozhuang Yitai Energy Technology Co., Ltd. | China national standards | MT | 635.09 | USD | 20251118 |