| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Energy Group Co., Ltd. | China national standards | MT | 787.56 | USD | 20250922 |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 2151.72 | USD | 20250922 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2151.72 | USD | 20250922 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 2151.72 | USD | 20250922 |
| PetroChina Kunlun Gas Co., Ltd. Liquefied Gas Daqing Petrochemical Branch | China national standards | MT | 801.62 | USD | 20250922 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 2151.72 | USD | 20250922 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 773.49 | USD | 20250922 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 843.81 | USD | 20250922 |
| Luxi Chemical Group Co., Ltd. | China national standards | MT | 787.56 | USD | 20250922 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 843.81 | USD | 20250922 |