Shanghai Foursemi Semiconductor Co Ltd is a CN-based company operating in industry. Shanghai Foursemi Semiconductor Co Ltd is a China-based company primarily engaged in providing power amplifier audio chips and haptic drivers. The firm's products mainly include low-power audio chips, mid/high-power audio chips, haptic drivers, power management chips and others. The firm's products are mainly used in consumer electronics and smart home devices including smartphones, tablets, smart wearables, smart displays, and smart speakers, and in automotive systems such as automotive audio systems and displays. The firm mainly conducts its business in the domestic market.