Corporation (Sociedad Anónima or SA) Separate and distinct legal entity. Admits a minimum of 2 shareholders. Managed by a board of directors who are elected by the stockholders of the corporation. Single-Shareholder Corporation (Sociedad Anónima Unipersonal or SAU) Separate and distinct legal entity. Admits exclusively 1 shareholder. SAUs are not allowed to be incorporated or wholly owned by SAUs. Managed by a board of directors who are elected by the only stockholder of the corporation. Download PDF