Act Governing Relations with Hong Kong and Macau Article 6

The Executive Yuan may establish or designate institutions, or commission non-governmental organizations in Hong Kong or Macau to handle matters regarding exchanges between the Taiwan Area and Hong Kong or Macau.The Competent Authority shall submit regular reports on the operations of the above institutions or non-governmental organizations to the Legislative Yuan.The organization and supervision of the commissioned non-governmental organizations mentioned in the first paragraph of this article shall be stipulated by law.
中文原文 香港澳門關係條例第6條
行政院得於香港或澳門設立或指定機構或委託民間團體,處理臺灣地區與香港或澳門往來有關事務。
主管機關應定期向立法院提出前項機構或民間團體之會務報告。
第一項受託民間團體之組織與監督,以法律定之。

English translation for reference only; the Chinese text prevails. Not legal advice.