| Vendor | Spec | Unit | Price | Currency | Date |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 847.95 | USD | 20251201 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 741.96 | USD | 20251201 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 847.95 | USD | 20251201 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1879.62 | USD | 20251201 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 876.21 | USD | 20251201 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 975.14 | USD | 20251201 |