| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1639.97 | USD | 20251204 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1131.01 | USD | 20251204 |
| Weifang Yixin Chemical Co., Ltd. | China national standards | MT | 1647.04 | USD | 20251204 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 1583.42 | USD | 20251204 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1060.33 | USD | 20251204 |
| Jiangsu Yangnong Chemical Co., Ltd. | China national standards | MT | 855.33 | USD | 20251204 |
| Jiangsu Yingte Chemical Co., Ltd. | China national standards | MT | 1357.22 | USD | 20251204 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1639.97 | USD | 20251204 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1512.73 | USD | 20251204 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 1583.42 | USD | 20251204 |