| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1196.83 | USD | 20251014 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1197.07 | USD | 20251013 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1196.37 | USD | 20251011 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1196.37 | USD | 20251010 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1195.47 | USD | 20251009 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1196.26 | USD | 20250930 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1195.68 | USD | 20250929 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1194.63 | USD | 20250928 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1194.63 | USD | 20250926 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1196.22 | USD | 20250925 |