| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 947.01 | USD | 20251205 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 947.01 | USD | 20251205 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 947.22 | USD | 20251204 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 947.22 | USD | 20251204 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.94 | USD | 20251203 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.94 | USD | 20251203 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.41 | USD | 20251202 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.41 | USD | 20251202 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.88 | USD | 20251201 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.88 | USD | 20251201 |