| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1871.79 | USD | 20250930 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 844.42 | USD | 20250930 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.2 | USD | 20250930 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 985.15 | USD | 20250930 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20250930 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 830.34 | USD | 20250930 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 829.95 | USD | 20250929 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 886.21 | USD | 20250929 |