| Vendor | Spec | Unit | Price | Currency | Date |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 843.27 | USD | 20250928 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1869.24 | USD | 20250928 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1089.22 | USD | 20250928 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1061.11 | USD | 20250928 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 969.75 | USD | 20250928 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1068.14 | USD | 20250928 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1096.24 | USD | 20250928 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250928 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 969.75 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1124.35 | USD | 20250928 |