| Vendor | Spec | Unit | Price | Currency | Date |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 971.08 | USD | 20250930 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 826.12 | USD | 20250930 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1097.74 | USD | 20250930 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20250930 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 985.15 | USD | 20250930 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1097.22 | USD | 20250929 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1097.22 | USD | 20250929 |