No handler, manufacturer, distributor, producer, wholesale customer including any producer-distributor or non-profit cooperative association acting as a handler, manufacturer, or distributor, consumer shall violate any of the provisions of this subchapter, directly or indirectly, or through an employee, representative or other agent, or through a subsidiary or affiliated company or corporation. For the purposes of this subchapter, “subsidiary or affiliated company or corporation” includes, but is not limited to, companies or corporations controlled by a handler, manufacturer, distributor, producer, wholesale customer or consumer, directly or indirectly, through ownership of issued capital stock, partnership interests, membership interests, or otherwise.