| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251011 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 914.87 | USD | 20251011 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 914.87 | USD | 20251010 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1055.62 | USD | 20251010 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 914.18 | USD | 20251009 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1054.82 | USD | 20251009 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 914.78 | USD | 20250930 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1055.52 | USD | 20250930 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 914.35 | USD | 20250929 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1055.02 | USD | 20250929 |