| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 805.4 | USD | 20251014 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.4 | USD | 20251014 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 802.58 | USD | 20251014 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 1872.69 | USD | 20251014 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 805.4 | USD | 20251014 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1112.35 | USD | 20251014 |
| China National Petroleum Corporation Lanzhou Petrochemical Branch | China national standards | MT | 844.82 | USD | 20251014 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 805.4 | USD | 20251014 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1267.23 | USD | 20251014 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 844.82 | USD | 20251014 |