Local non-public offering foundation. Medical fund refers to the funds that are not included in the scope of free medical care, extracted from income according to the standard of free medical care stipulated by the local financial department with reference to the relevant provisions of the free medical care system, and used for free medical care for employees. Local non-public offering foundation. BYD brand was born in Shenzhen and was founded in 1995. Its business spans four major industries: automobile, rail transit, new energy and electronics. BYD Auto takes the development route of independent research and development, independent production and independent brand.