Since the establishment in 1981, Cosmo Electronics Corporation has become world’s leading manufacturers in the field of Photo Couplers and Relay. We are listed on Taiwan Stock Exchange Corporation (TSEC) in 2000. For past 30 years, through its relentless devotion to research and development, keep providing professional techniques and comprehensive service to customer. Cosmo is recognized as global leading company in OPTO electronics industry and reliable to all customers worldwide.

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