By providing the best services to customers, all subsidiaries of E&K (HK) including E&K Cleaning, E&K Air Purify and also Insectkil achieved the certificates of ISO 9001:2008 Quality Management, ISO 14001:2004 Environmental Management and OHSAS 18001 Occupational health and safety Management Systems from SGS Hong Kong Ltd in November 2010. The certificates demonstrate E&K(HK)'s long term commitment to quality assurance, but also the conformity to customers and regulatory requirements.