| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Group Co., Ltd. | China national standards | MT | 942.9 | USD | 20250924 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 942.9 | USD | 20250924 |
| SINOPEC Qingdao Refining&Chemical Co., Ltd. | China national standards | MT | 942.9 | USD | 20250924 |
| Wanhua Chemical Group Co., Ltd. | China national standards | MT | 992.16 | USD | 20250924 |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 1097.71 | USD | 20250924 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250924 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 956.98 | USD | 20250924 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 956.98 | USD | 20250924 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.98 | USD | 20250924 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 956.98 | USD | 20250924 |