| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 1012.81 | USD | 20250929 |
| Shandong Luxi Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1195.68 | USD | 20250929 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1195.68 | USD | 20250929 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 1012.81 | USD | 20250929 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 928.41 | USD | 20250929 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 914.35 | USD | 20250929 |