This study was conducted to provide an improving direction of K-EIP(Korean Eco-Industrial Park) construction project by company's voluntary participation. For this purpose, we investigated and analyzed the status of domestic eco-industrial park projects from various literatures, foreign EIP cases and FGI(Focus Group Interview). The key issues to construct a voluntary K-EIP are the lack of experts, the difficulties of commercialization financing, and so on. In this study, therefore, the programs to resolve these problems in K-EIP construction project were suggested at the level of government and corporation.

This study has intended to analyze the characteristics of Resource Circulation Networks: Focused on Chungbuk Eco-Industrial Park (EIP). To reach the goal, this study has divided the networks into such fields as energy, waste, and water, and analyzed the characteristics of each field's projects, already finished or in process, in accordance with network development process, environment, and economy. This study analyzed promotion system and treatment method of the network projects for network development process, and environmental pollution load decrease and air pollutants for environment, and treatment cost reduction, resource purchase cost reduction, etc. for economy. This study found the following results: 1) as for promotion system and business type in network development process field, 8 projects adopted corporate-led system and recycling network, and 3 projects governance system and value-added network project respectively; 2) as for environmental pollution load reduction, air pollutant reduction in environment field, both all projects in water and 6 projects in waste have reduced 92,800 t/year of pollution loads, and all projects in energy and 6 projects in waste have reduced 66,000 t/year of air pollutants, especially 48,000 t CO2/year; and3)as for economic benefits in economy field, it has been found that total economic benefits are 30 billion won.