A director of an UK company is a person over 16 years old, who has the duties of managing the company, following the law and the company's articles of association, and file important company documents to the Companies House, such as accounts, annual returns, and changes of company directors or secretaries. In addition, a director has to promote company success, for the benefit of the company members, rather than personal interest. In private companies the minimum number of directors is one, while in public companies there must be two directors. The directors have a legal obligation regarding the delivery of company documents, and they can be prosecuted for this matter.