| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1874.08 | USD | 20251016 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 845.45 | USD | 20251016 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 798.95 | USD | 20251016 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 972.27 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1063.86 | USD | 20251016 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.04 | USD | 20251016 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.0 | USD | 20251016 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 972.27 | USD | 20251016 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 845.13 | USD | 20251015 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 845.13 | USD | 20251015 |