| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 507.54 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 507.24 | USD | 20251020 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 507.41 | USD | 20251017 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 507.27 | USD | 20251016 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 507.08 | USD | 20251015 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.89 | USD | 20251014 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.99 | USD | 20251013 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.7 | USD | 20251011 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.7 | USD | 20251010 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 506.31 | USD | 20251009 |