| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.37 | USD | 20250825 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.37 | USD | 20250825 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.95 | USD | 20250823 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.95 | USD | 20250823 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.95 | USD | 20250822 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.95 | USD | 20250822 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 631.25 | USD | 20250821 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 631.25 | USD | 20250821 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.39 | USD | 20250820 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 630.39 | USD | 20250820 |