1. Yuhong Restoration is Oriental Yuhong Building Restoration Technology Co., Ltd., a large-scale building restoration company, which was formally established in 2022; Yuhong Home is Yuhong Home Technology Service Co., Ltd., which belongs to Yuhong Maintenance and is a subsidiary of Yuhong Maintenance Holdings.

2. Yuhong Maintenance provides all kinds of building maintenance, renovation and reinforcement engineering services, including the whole house maintenance project, as well as the engineering maintenance business fields of various industrial plants, schools and other system office buildings in the park; Yuhong provides door-to-door services, including waterproofing, house maintenance, toilet leakage, balcony leakage, external wall leakage and pipeline dredging.