| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250926 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 843.27 | USD | 20250926 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 801.1 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1061.11 | USD | 20250926 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 969.75 | USD | 20250926 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 836.24 | USD | 20250926 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250926 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 829.21 | USD | 20250926 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1068.14 | USD | 20250926 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250926 |