| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.43 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.04 | USD | 20251020 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.04 | USD | 20251020 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.26 | USD | 20251017 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 634.26 | USD | 20251017 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.85 | USD | 20251015 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.85 | USD | 20251015 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.62 | USD | 20251014 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.62 | USD | 20251014 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.74 | USD | 20251013 |