| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 1152.85 | USD | 20250920 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 927.9 | USD | 20250920 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 970.08 | USD | 20250920 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 970.08 | USD | 20250920 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 970.08 | USD | 20250920 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 970.08 | USD | 20250920 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 956.02 | USD | 20250920 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 956.02 | USD | 20250920 |
| Shaanxi Yanchang Petroleum (Group) Co., Ltd. | China national standards | MT | 956.02 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 956.02 | USD | 20250920 |