| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 847.28 | USD | 20250811 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 847.55 | USD | 20250809 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 847.55 | USD | 20250809 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 847.55 | USD | 20250808 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 847.55 | USD | 20250808 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 847.99 | USD | 20250807 |