General items: Technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; ecological conservation area management services; eco-friendly materials sales; specialized electronic equipment sales; network equipment sales; software development; computer system services; industrial control computer and system manufacturing; office services; internet sales (excluding goods that require a license); digital creative product exhibition and display services; business management consulting; industrial design services; living waste treatment equipment manufacturing; living waste treatment equipment sales; environmental sanitation management (excluding environmental quality monitoring, pollution source inspection, and the handling of urban living waste, construction waste, and kitchen waste); soil and site remediation equipment manufacturing; specialized design services; conference and exhibition services; financial advisory services; asset management services for self-owned funds; investment activities using self-owned funds; information technology consulting services; social and economic consulting services; information consulting services (excluding licensed information consulting services); information system integration services; public facility installation services for environmental sanitation; network and information security software development; industrial internet data services. Permitted items: Urban living waste commercial services; construction project contracting; internet information services; building intelligent system design.