| Vendor | Spec | Unit | Price | Currency | Date |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20251008 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20251008 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20251007 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20251005 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20251004 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20250930 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 957.01 | USD | 20250930 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |