| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 977.7 | USD | 20250918 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 1055.07 | USD | 20250918 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 1308.29 | USD | 20250918 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1041.01 | USD | 20250918 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1041.01 | USD | 20250918 |
| China national standards | MT | 998.8 | USD | 20250918 | |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1005.84 | USD | 20250918 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 970.67 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1266.09 | USD | 20250918 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1266.09 | USD | 20250918 |