| Vendor | Spec | Unit | Price | Currency | Date |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1090.81 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1252.67 | USD | 20251011 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 844.5 | USD | 20251011 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 844.5 | USD | 20251011 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1871.97 | USD | 20251011 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1069.7 | USD | 20251011 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1280.82 | USD | 20251011 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251011 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1097.85 | USD | 20251011 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 971.17 | USD | 20251011 |