| Vendor | Spec | Unit | Price | Currency | Date |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 942.48 | USD | 20250929 |
| SINOPEC Qingdao Refining&Chemical Co., Ltd. | China national standards | MT | 942.48 | USD | 20250929 |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 945.29 | USD | 20250929 |
| SINOPEC Qingdao Refining&Chemical Co., Ltd. | China national standards | MT | 1244.92 | USD | 20250929 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1242.1 | USD | 20250929 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 942.48 | USD | 20250929 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |