| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 450.35 | USD | 20250915 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.31 | USD | 20250915 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 401.09 | USD | 20250915 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.3 | USD | 20250915 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.3 | USD | 20250915 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 478.5 | USD | 20250915 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 422.2 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.65 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.65 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.65 | USD | 20250909 |