Tiankai Southeast was jointly initiated by "Henan Tiankai Group" and "Zhejiang Southeast Grid Co., Ltd." (stock code: 002135). In August 2020, a strategic cooperation agreement was signed to establish Tiankai Southeast Green Building Technology (Henan) Co., Ltd. The first phase covers an area of 108 acres and has an investment of about 400 million yuan to create a production base with an annual output of 60,000 tons of steel structure processing capabilities. Tiankai Southeast will use the steel structure and grid system technology and resources independently developed by Southeast Grid, share the top ten core technologies of Southeast Grid, more than 200 patented technologies and scientific and technological research and development results and academician workstations. It specializes in design, manufacturing, installation, prefabricated housing, multi- (super) high-rise steel structures, large-span space tube truss steel structures, plant steel structures, green building materials and other prefabricated building production and manufacturing enterprises. The company is located 500 meters south of the intersection of National Highway 310 and Industrial South Road in the Industrial Cluster Zone of Xingyang City, Henan Province. Construction started on October 15, 2020, covering an area of 107 acres, with a total construction area of 71,629.57 square meters, a total investment of 1 billion yuan, and a planned investment of 450 million yuan in the first phase. The company has a variety of advanced processing equipment, with a complete set of special equipment from component cutting, forming, assembly, welding, rust removal, painting, testing, etc. It can meet the processing requirements of various complex components, complex nodes and new structures. The company's factory covers an area of 50,000 square meters, divided into four workshops, with 8 professional production lines, 58 cranes of various tonnages, a maximum lifting capacity of 50 tons, and a monthly production capacity of 6,000 tons. It mainly produces box columns, cross columns, round tube columns, welded H-beam columns, welded H-beams and box trusses, special-shaped giant steel structures, steel truss floor decks and other products.