| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20251005 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 957.01 | USD | 20251004 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 942.93 | USD | 20251004 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |