| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.65 | USD | 20251023 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1071.66 | USD | 20251023 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 839.0 | USD | 20251023 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 817.85 | USD | 20251023 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.65 | USD | 20251023 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 888.35 | USD | 20251023 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1283.17 | USD | 20251023 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 768.49 | USD | 20251023 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.81 | USD | 20251023 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1099.86 | USD | 20251023 |