| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 920.56 | USD | 20250926 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 941.65 | USD | 20250926 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 927.59 | USD | 20250926 |
| Shandong River Chemical Co., Ltd. | China national standards | MT | 788.1 | USD | 20250925 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 802.17 | USD | 20250925 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 774.03 | USD | 20250925 |
| Shandong Hongshuo Chemical Technology Co., Ltd. | China national standards | MT | 816.25 | USD | 20250925 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 992.16 | USD | 20250925 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250925 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 759.95 | USD | 20250925 |