| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 421.89 | USD | 20250827 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 478.15 | 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 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 400.8 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.02 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | 90% | MT | 450.02 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.58 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.02 | USD | 20250827 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 464.08 | USD | 20250827 |