| Vendor | Spec | Unit | Price | Currency | Date |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 847.89 | USD | 20251208 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 876.15 | USD | 20251208 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 847.89 | USD | 20251208 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1095.19 | USD | 20251208 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 840.82 | USD | 20251208 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.52 | USD | 20251208 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 890.28 | USD | 20251208 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1102.26 | USD | 20251208 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1879.49 | USD | 20251208 |