Shanghai FourSemi Semiconductor Co., Ltd. is a semiconductor company specializing in the design, research, development, and sale of perceptual-intelligence chips, with a focus on power amplifier audio and haptic driver technologies in China. Operating under a fabless model, it provides a diverse portfolio of products including low-power audio chips, mid and high-power audio chips, automotive audio chips, haptic drivers, power management chips, and sensor chips. These solutions cater to various application scenarios in automotive electronics, consumer electronics, and industrial control sectors. The company emphasizes intelligent audio solutions such as automotive intelligent audio chips, portable intelligent audio chips, and haptic feedback chips, alongside power chips. All revenue is generated from operations within the People's Republic of China. Founded in 2016 and headquartered in Shanghai, China, Shanghai FourSemi Semiconductor Co., Ltd. plays a key role in advancing audio and haptic technologies for perceptual intelligence in targeted markets.