| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 953.05 | USD | 20250813 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 925.02 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 981.08 | USD | 20250813 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 981.08 | USD | 20250813 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1219.34 | USD | 20250813 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1219.34 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 967.06 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 981.08 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 981.08 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 981.08 | USD | 20250813 |