According to statistics, daming county Changjin Industrial Co., Ltd. was established on May 20, 2022, and its business scope includes rural infrastructure construction, rural revitalization research and application; Planning and design of rural modern agricultural industry and industrial system; Planning and design of environmental reconstruction and construction in beautiful countryside; Planning and design of rural tourism industry system; Planning and design of rural green circular economy system: planning and design of rural landscape engineering; Agricultural industrialization research and transformation of scientific and technological achievements; Agricultural technology development; Agricultural project development and research; Agricultural industry research and consulting services; Popularization and research of new varieties and technologies of modern agriculture; Agricultural scientific research and experimental development services; Literary creation and performance, mass cultural and sports activities, leisure and sightseeing activities; Construction and management of rural residential facilities; Renovation and upgrading of rural public infrastructure, cultural and sports facilities, public lighting and water supply security projects; Rural base logistics infrastructure construction; Agricultural products storage and preservation, cold chain logistics facilities construction; Popularization and application of rural biomass energy; Construction, promotion and application of smart agriculture, green agriculture, agricultural and rural big data systems, and construction, development and application of agricultural and rural industrial chain standard systems; Construction and operation of rural e-commerce platform; Agricultural and rural tourism development and rural road network construction; Rural governance; Rural land circulation and large-scale infrastructure construction and business consulting; Construction and management of urban and rural water supply and drainage and sewage treatment; Project construction and custody; New energy project design, development, management and consulting services; Solar photovoltaic power generation and sales; Purchase and sale of agricultural and sideline products; Landscaping services and road greening services; Subcontracting of construction services; Operating lease of construction machinery and equipment; Agricultural experience activities; Agricultural picking and sightseeing activities; Conference and exhibition services, socio-economic consulting services (not allowed to engage in investment, financing, trust and other activities), enterprise management and planning services, cultural information consulting services, business information consulting services * * * (projects subject to approval according to law can only be operated after approval by relevant departments).