HiSilicon (Chinese: 海思; pinyin: Hǎisī) is a Chinese fabless semiconductor company based in Shenzhen, China and fully owned by Huawei.HiSilicon purchased licenses from ARM Holdings for at least ARM Cortex-A9 MPCore, ARM Cortex-M3, ARM Cortex-A7 MPCore, ARM Cortex-A15 MPCore, ARM Cortex-A53, and ARM Cortex-A57 and also for the Mali-T628 MP4.HiSilicon also purchased licenses from Vivante Corporation for their GC4000 graphics core.HiSilicon is reputed to be the largest domestic designer of integrated circuits in China.