| Vendor | Spec | Unit | Price | Currency | Date |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 844.39 | USD | 20250925 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1083.64 | USD | 20250925 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 795.14 | USD | 20250925 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 795.14 | USD | 20250925 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1027.34 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 900.69 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 900.69 | USD | 20250925 |
| Kellin Chemicals (Zhangjiagang) Co., Ltd. | China national standards | MT | 759.95 | USD | 20250925 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250925 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250925 |