Restar Corporation engages in the sale of semiconductors, electronic components, image sensors, cameras, peripheral equipment, and related products in Japan, China, South Korea, Vietnam, Taiwan, and internationally. It operates through Devices Business Unit, System Business Unit, and IT&SIer Business Unit segments. The company also offers system proposals with various line card combinations; high-value-added solutions and technical support for liquid crystal systems and overseas suppliers; LSI design, development, and support; contracted reliability test services; supply chain management for electronics; and electronics manufacturing services for mounting of electronic components, modules, and other electronic devices. In addition, it engages in the proposal, design, construction, and maintenance engineering for video, audio, communications, and measurement; development and manufacture of cashless payment terminals and individual number card authentication-related devices; and operation and management services for the introduction and diffusion of renewable energy through solar power generation. Further, the company produces and sells vegetables; and provides power and system consulting services. Additionally, it is involved in software and application development; design and manufacture of industrial PCS; development and maintenance of in-house solutions; semiconductor design and testing; and other information service businesses. The company was formerly known as Restar Holdings Corporation and changed its name to Restar Corporation in January 2024. Restar Corporation was incorporated in 2009 and is headquartered in Minato, Japan.