| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 931.14 | USD | 20251027 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 884.58 | USD | 20251027 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 909.98 | USD | 20251027 |
| SINOPEC Qingdao Refining&Chemical Co., Ltd. | China national standards | MT | 1248.57 | USD | 20251027 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1245.75 | USD | 20251027 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 1100.44 | USD | 20251027 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 895.27 | USD | 20251026 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 909.37 | USD | 20251026 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 902.32 | USD | 20251026 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 902.32 | USD | 20251026 |