Services of Green Tree Ring Arboricultural Consultancy Ltd. are including tree risk assessment(樹木風險評估), regular tree survey, post-inclement weather inspection, tree removal application, compensatory planting proposal, tree works inspection, tree complaint handling, tree management(樹木管理) and tree works. All services are implemented by ISA(國際樹木學會) certified arborist(樹藝師) and certified tree worker(攀樹師).