Self-employed. According to the inquiry on the administrative official website, it is known that a natural person is engaged in industrial and commercial operations and is registered in accordance with the law as an individual industrial and commercial household. The assets obtained by the natural person through investment are called sole proprietorship (sole proprietorship). If a natural person opens two trusteeships, it is an individual industrial and commercial household and needs to be handled. Self-employed business license. The custody center is a place responsible for custody services, also known as the custody house (custody) for short.