| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1025.66 | USD | 20251211 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.69 | USD | 20251210 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.4 | USD | 20251209 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.53 | USD | 20251208 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.75 | USD | 20251207 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.75 | USD | 20251206 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.75 | USD | 20251205 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.98 | USD | 20251204 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.68 | USD | 20251203 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1024.1 | USD | 20251202 |