Cirtek Holdings Philippines Corp. is a holding company, which engages in semiconductor assembly and testing operations. It operates through the following subsidiaries: Cirtek Electronics Corporation (CEC), Cirtek Advanced Technologies and Solutions, Inc. (CATSI), and Quintel USA, Inc. CEC produces integrated circuits, sensors, microelectromechanical systems and active, as well as passive chips used in modern electronic systems. CATSI engages in designing, engineering, manufacturing, testing, tuning, as well as supply chain solutions for integrated box build equipment with specialization in radio frequency, microwave, and millimeter wave. Quintel USA, Inc. designs, develops, and supplies cellular base station antennas for global telco carriers. The company was founded on May 31, 1984 and is headquartered in Binan, Philippines.