| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 784.86 | USD | 20250813 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 770.85 | USD | 20250813 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 784.86 | USD | 20250813 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 868.96 | USD | 20250813 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.83 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 915.21 | USD | 20250813 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 922.21 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.99 | USD | 20250813 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 896.99 | USD | 20250813 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 840.93 | USD | 20250813 |