RITEK Corporation manufactures, processes, sells, imports, and exports optical information and memory products and related equipment in Taiwan, the United States, Rest of Asia, Europe, Africa, Oceania, and internationally. It offers storage media product lines, including optical storage media comprising CDs, DVDs, and Blu-ray discs; electronic storage media, which include flash memory cards, USB flash drives, portable hard disc drives, solid state drives, and others. It also provides solar modules comprising mono- and polycrystalline solar modules; integrated solar systems; OLED display panels, ITO glasses, and patterned sapphire substrate solutions; metal masks; contact lenses; ozone antibacterial systems; and biological detection discs. In addition, the company engages in the manufacture and processing of organic electroluminescent displays, conductive glass, optical discs, and batteries; lighting equipment manufacturing; venture investment; nursing services; real estate investment and leasing; and electronic components manufacturing businesses, as well as offers silicone chemicals, concrete waterproofing, DIY repairs, home cleaning/personal care products, plastic precision injection products, and management consulting services. Further, it offers retiring day care centers, public, and catering services. RITEK Corporation was founded in 1952 and is headquartered in Hsinchu City, Taiwan.