1. Liaocheng Economic Development Zone Coal Industry Group Co., Ltd.: Mainly engaged in coal mining, sales and processing, it is one of the important coal enterprises in Liaocheng.
2. Liaocheng Economic and Technological Development Zone Water Group Co., Ltd.: Mainly engaged in tap water, sewage treatment, heating and other businesses, it is one of the important water enterprises in Liaocheng.
3. Food Industrial Park in Liaocheng Economic Development Zone of Shuanghui Group: This project is invested and constructed by Shuanghui Group, mainly producing meat products, aquatic products and other foods.