China Hangfa Southern Industry Co., Ltd. was formerly known as China Southern Aviation Industry (Group) Co., Ltd. (abbreviation: China Hangfa Southern Company or Southern Company; English: aecsouthindustrycompany limited, which belongs to China Aviation Engine Group. Founded in 195 1 year1October, it is one of the key construction projects during the first five-year plan period 156, one of the first six aviation industry enterprises in China, and one of the first 57 enterprise groups in China. It is the main R&D and production base of small and medium-sized aero engines in China.