| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 541.28 | USD | 20250919 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 598.92 | USD | 20250919 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 604.54 | USD | 20250919 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 646.72 | USD | 20250919 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 618.6 | USD | 20250919 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 576.43 | USD | 20250919 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 618.6 | USD | 20250919 |
| Weifang Mingbo Chemical Co., Ltd. | China national standards | MT | 534.25 | USD | 20250919 |
| Satellite Chemical Co., Ltd. | China national standards | MT | 604.54 | USD | 20250919 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 534.25 | USD | 20250919 |