Building material sales; Concrete structural component sales; Concrete structural component manufacturing; Stair manufacturing; Cement product sales; Asbestos cement product sales; Brick and tile sales; Building block sales; Non-metallic ore and product sales; Asbestos cement product manufacturing; Building block manufacturing; Cement product manufacturing; Special chemical product manufacturing (excluding hazardous chemicals); Special chemical product sales (excluding hazardous chemicals); Non-metallic mineral product manufacturing; Brick and tile manufacturing; Rubber product manufacturing; Light building material manufacturing; Light building material sales; Transport cargo packaging services; Road cargo transport for general freight vehicles with total mass of 4.5 tons and below (excluding network freight and dangerous goods); Road cargo transport station operation; Investment activities with own funds; Rubber product sales; Undertaking parent company engineering construction business; Housing leasing; Non-residential real estate leasing; Internet sales (excluding goods requiring sales permits); Technology import and export; Goods import and export; (Without approval from financial regulatory authorities, no engaging in deposit-taking, financing guarantee, discretionary asset management, or public fundraising activities). Licensed items: Road cargo transport (excluding dangerous goods).