| Vendor | Spec | Unit | Price | Currency | Date |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 1209.53 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1293.92 | USD | 20251009 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 970.44 | USD | 20251009 |
| SINOPEC Maoming Petrochemical Co., Ltd. | China national standards | MT | 1125.14 | USD | 20251009 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1167.34 | USD | 20251009 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 942.31 | USD | 20251009 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 970.44 | USD | 20251009 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 1153.27 | USD | 20251009 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 932.46 | USD | 20251009 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 925.43 | USD | 20251009 |