| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.21 | USD | 20251029 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.09 | USD | 20251028 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.09 | USD | 20251028 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.87 | USD | 20251027 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.87 | USD | 20251027 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.45 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.45 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.54 | USD | 20251023 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.54 | USD | 20251023 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.43 | USD | 20251021 |