Existence. Hunan Hengyang 91 is a comprehensive group enterprise integrating real estate development, construction engineering, shopping mall operation and agricultural planting and processing. Hengyang 99 Real Estate Co., Ltd. is an independent legal person enterprise under the banner of "Hunan 91". The Summer Palace is an intelligent experimental (demonstration) base for health care and old-age care developed by real estate in 1999 and awarded by the Office for the Aged. Now it already exists and is a key project of Hengyang Municipal People's Government.