| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.02 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 400.8 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.84 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.84 | USD | 20250827 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 478.15 | USD | 20250827 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 421.89 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.51 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.51 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.51 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 449.51 | USD | 20250826 |