| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 604.54 | USD | 20250920 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 604.54 | USD | 20250920 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 632.66 | USD | 20250920 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 604.54 | USD | 20250920 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 618.6 | USD | 20250920 |
| BASF-YPC. Co., Ltd. | China national standards | MT | 625.63 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 541.28 | USD | 20250920 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 590.48 | USD | 20250920 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 632.66 | USD | 20250920 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 618.6 | USD | 20250920 |