| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 1237.59 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1195.4 | USD | 20250922 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1153.21 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1293.84 | USD | 20250922 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 1012.57 | USD | 20250922 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1125.08 | USD | 20250922 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1005.54 | USD | 20250922 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1195.4 | USD | 20250922 |