Shanghai Stonehill Technology Co., Ltd. provides internet information services in China. The company develops 2345 website navigation, browser, security guard, HaoZip, image king, input method, weather king, blue bird wallpaper, and other products. It is also involved in research and development of brain-like intelligence for diagnosis and evaluation of non-organic brain diseases, such as epilepsy, depression, severe insomnia, etc.; natural language processing and artificial intelligence; and equity investment, financial product investment and other businesses. The company was formerly known as Shanghai 2345 Network Holding Group Co., Ltd. and changed its name to Shanghai Stonehill Technology Co., Ltd. in August 2023. Shanghai Stonehill Technology Co., Ltd. was founded in 1989 and is based in Shanghai, China.