Promotion - NYKK ENGINEERING GROUP SDN BHD Selangor, Malaysia, Kuala Lumpur (KL), Subang Jaya, Solutions for Green Buildings. This is what NYKK ENGINEERING GROUP SDN BHD specializes in. With more than 32 years of specialized experience in the Heating, Ventilation and Air Conditioning (HVAC) industry, we promise energy efficiency and resource optimization in our professional solutions.