| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 941.65 | USD | 20250928 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 941.65 | USD | 20250928 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 941.65 | USD | 20250926 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 941.65 | USD | 20250926 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 942.9 | USD | 20250925 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 942.9 | USD | 20250925 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 942.9 | USD | 20250924 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 942.9 | USD | 20250924 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 |