| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.17 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.17 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.92 | USD | 20251121 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.92 | USD | 20251121 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.65 | USD | 20251120 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.65 | USD | 20251120 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.95 | USD | 20251119 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.95 | USD | 20251119 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.09 | USD | 20251118 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.09 | USD | 20251118 |