| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Weifang Shuoxin Chemical Co., Ltd. | China national standards | MT | 773.72 | USD | 20250918 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 745.59 | USD | 20250918 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 788.43 | USD | 20250916 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 844.75 | USD | 20250916 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 844.75 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 844.75 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 943.3 | USD | 20250916 |