Section 13M. There shall be a director of each foreign office appointed by the executive director of the international trade office, who shall be a person with at least 2 years of experience in international trade, having had administrative or business experience in the country where the office is located, who shall be fluent in at least 2 languages and who may be a foreign national. The director shall not be subject to chapter 31 or section 9A of chapter 30.