| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.5 | USD | 20250821 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 757.5 | USD | 20250821 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 764.52 | USD | 20250821 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 757.5 | USD | 20250821 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 757.5 | USD | 20250821 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 785.56 | USD | 20250821 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 869.72 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 916.02 | USD | 20250821 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 923.03 | USD | 20250821 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 897.78 | USD | 20250821 |