| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.71 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 943.26 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 936.22 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 908.07 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.03 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 844.71 | USD | 20250829 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 901.03 | USD | 20250829 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 816.56 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 816.18 | USD | 20250828 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 816.18 | USD | 20250828 |