| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250829 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 767.28 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250829 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 760.24 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 900.61 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 900.61 | USD | 20250828 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 925.94 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 918.9 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 872.47 | USD | 20250828 |