LEENO Industrial Inc. manufactures and sells critical testing components for integrated circuit (IC) production, testing, and analysis worldwide. The company offers system level, RF device, and large device test sockets; high power cooling lid, memory device test socket, elastomer socket, and kelvin socket; fine pitch RF, large pin count, and kelvin probe head; spring contact, coaxial, non-magnetic, and ICT probe; PCB for catheter application and other medical components; module connector test socket and probe; and battery charging discharging probes, with proprietary brands including LEENO Pin and LEENO Test Socket. Founded in 1978 and headquartered in Busan, South Korea, LEENO Industrial operates primarily in the semiconductor testing industry, serving domestic and overseas markets with a focus on customized solutions through 100% in-house manufacturing from design to reliability testing. In recent developments, the company participates in global exhibitions such as SEMICON Europe and productronica in 2025 to showcase precision test sockets and foster partnerships, while maintaining strong sales growth with Q1 2025 revenue mix comprising 61.3% test sockets, 25.8% pogo pins, and 11.8% medical device parts amid robust demand in AI and semiconductor sectors.