| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Hebang Chemical Co., Ltd. | China national standards | MT | 1350.1 | USD | 20250922 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 914.13 | USD | 20250922 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1350.1 | USD | 20250922 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1307.91 | USD | 20250922 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1350.1 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1125.08 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1125.08 | USD | 20250922 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1265.72 | USD | 20250922 |
| Jiangsu Haixing Chemical Co., Ltd. | China national standards | MT | 1139.14 | USD | 20250922 |
| Jinan Xinhou Trading Co., Ltd. | China national standards | MT | 1153.21 | USD | 20250922 |