| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 759.19 | USD | 20250919 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 871.67 | USD | 20250919 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 787.31 | USD | 20250919 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 773.25 | USD | 20250919 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 843.55 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 942.53 | USD | 20250918 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 886.26 | USD | 20250918 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 752.62 | USD | 20250918 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |