| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.94 | USD | 20250819 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.44 | USD | 20250818 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 967.44 | USD | 20250818 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 911.36 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1166.54 | USD | 20250818 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1242.25 | USD | 20250818 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 967.44 | USD | 20250818 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 967.44 | USD | 20250818 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1093.63 | USD | 20250818 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1037.55 | USD | 20250818 |