| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1058.05 | USD | 20251104 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 916.98 | USD | 20251104 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 917.21 | USD | 20251103 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1058.32 | USD | 20251103 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251101 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 917.04 | USD | 20251101 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 917.04 | USD | 20251031 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1058.13 | USD | 20251031 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1058.68 | USD | 20251029 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 917.52 | USD | 20251029 |