| Vendor | Spec | Unit | Price | Currency | Date |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.02 | USD | 20250919 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.02 | USD | 20250919 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 1195.75 | USD | 20250918 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.6 | USD | 20250918 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 914.4 | USD | 20250918 |