Hydrogen engine testing at the Korea Institute of Machinery and Materials (KIMM) has advanced significantly thanks to HORIBA’s Hydrogen Analyzer HyEVO. In this interview, Dr. Hyunwook Park, Senior Researcher at KIMM, explains how HyEVO has enabled accurate low-concentration measurement, simplified workflows, and improved safety in hydrogen engine research. The Korea Institute of Machinery and Materials (KIMM) is a world-class research institute in South Korea, dedicated to addressing global challenges in carbon neutrality, climate technology, energy conversion, and mobility.