ALT Co., Ltd. is a South Korea-based outsourced semiconductor assembly and test provider specializing in post-processing, wafer testing, and packaging solutions for non-memory and system semiconductors. Founded in 2003 and headquartered in Cheongju-si, Chungcheongbuk-do, South Korea, the company operates within the semiconductor testing and backend services industry, serving fabless semiconductor design firms, integrated device manufacturers, and foundries across the consumer electronics, automotive, telecommunications, display, and industrial sectors. ALT Co., Ltd. offers a comprehensive range of post-processing solutions, including wafer probe testing for power management integrated circuits, display driver integrated circuits, CMOS image sensors, and microcontroller units; final package testing for analog, digital, and mixed-signal integrated circuits; proprietary wafer rim-cut and edge-grinding thinning services for ultra-thin power devices and image sensors; laser sawing, wafer sorting, taping, and automated optical visual inspection services; and testing and backend packaging solutions for silicon carbide and gallium nitride wide-bandgap power discrete semiconductors, such as insulated-gate bipolar transistors and metal-oxide-semiconductor field-effect transistors. In recent corporate developments, ALT Co., Ltd. completed its initial public offering on the KOSDAQ market of the Korea Exchange and expanded its physical footprint with the construction and operational ramp-up of its second factory in Ochang, Cheongju. The company has also strategically broadened its technical capabilities by inaugurating high-voltage test lines for next-generation automotive and renewable energy power devices, scaling up production lines for its proprietary rim-cutting technology, and securing international automotive quality management certifications to accelerate its commercial penetration into global electric vehicle and artificial intelligence hardware supply chains.