| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250924 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 985.12 | USD | 20250924 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.61 | USD | 20250924 |
| Beijing Xinqianrong Petrochemical Co., Ltd. | China national standards | MT | 914.76 | USD | 20250924 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 985.12 | USD | 20250924 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 985.12 | USD | 20250924 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 985.12 | USD | 20250924 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 914.76 | USD | 20250924 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.83 | USD | 20250924 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1238.44 | USD | 20250924 |