| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 260.25 | USD | 20250918 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 281.35 | USD | 20250918 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 379.83 | USD | 20250918 |
| Qingdao Ruishuang Chemical Co., Ltd. | China national standards | MT | 422.03 | USD | 20250918 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 351.69 | USD | 20250918 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 330.59 | USD | 20250918 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 256.03 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.86 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 366.06 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.98 | USD | 20250916 |