The document discusses the theoretical framework of eco-industrial parks and sustainable industrial development. It explains that while industry can increase prosperity, uncontrolled industrial development can degrade the environment. Sustainable development seeks to balance economic, environmental, and social needs both now and for future generations. For industry to be sustainable, it must be economically viable, environmentally compatible, and socially responsible. Eco-industrial parks provide a model for sustainable industrial development by creating synergies between companies that allow for resource sharing and industrial symbiosis to reduce environmental impacts.