| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1216.65 | USD | 20251211 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.5 | USD | 20251210 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.15 | USD | 20251209 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.31 | USD | 20251208 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.56 | USD | 20251205 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.84 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.48 | USD | 20251203 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1214.79 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1215.39 | USD | 20251201 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1214.88 | USD | 20251129 |