| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 918.68 | USD | 20251203 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 918.68 | USD | 20251203 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1060.01 | USD | 20251203 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1060.01 | USD | 20251203 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1059.41 | USD | 20251202 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 918.16 | USD | 20251202 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1059.94 | USD | 20251201 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 918.61 | USD | 20251201 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 918.22 | USD | 20251129 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1059.49 | USD | 20251129 |