No.

They are all high-quality brands of domestic sofas, and they are all produced in Chengdu. Huangma Kangzhijia is a product of Chengdu Zhuge Furniture Co., Ltd. The factory is located at No. 796, Hope Road, Zone A, Xinjin Industrial Park, while Realma Millennium's manufacturer is at No. 142 Linhe Street. It is obviously not the same brand.