| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.66 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 819.66 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 819.66 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.66 | USD | 20250815 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 658.53 | USD | 20250815 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 896.72 | USD | 20250815 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 812.65 | USD | 20250815 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 742.6 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.72 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 903.73 | USD | 20250815 |