; or (C) conducting any transaction involving such property. (10) Ban on investment in equity or debt of sanctioned person The President may, pursuant to such regulations or guidelines as the President may prescribe, prohibit any United States person from investing in or purchasing significant amounts of equity or debt instruments of the person subject to subsection (b). (11) Exclusion of corporate officers The President may direct the Secretary of State to deny a visa to, and the Secretary of Homeland Security to exclude from the United States, any alien that the President determines is a corporate officer or principal of, or a shareholder with a controlling interest in, the person subject to subsection (b). (12) Sanctions on principal executive officers The President may impose on the principal executive officer or officers of the person subject to subsection (b), or on persons performing similar functions and with similar authorities as such officer or officers, any of the sanctions under this subsection. 106. Exemptions, waivers, and rulemaking (a) Exemptions The following activities shall be exempt from sanctions under sections 103 and 105: (1) Activities subject to the reporting requirements under title V of the National Security Act of 1947 ( 50 U.S.C. 3091 et seq.), or any authorized intelligence activities of the United States. (2) The admission of an alien to the United States if such admission is necessary to comply with United States obligations under the Agreement between the United Nations and the United States of America regarding the Headquarters of the United Nations, signed at Lake Success June 26, 1947, and entered into force November 21, 1947, under the Convention on Consular Relations, done at Vienna April 24, 1963, and entered into force March 19, 1967, or under other international agreements. (b) Exception relating to importation of goods The requirement to impose sanctions under sections 103 and 105 shall not include the authority to impose sanctions on the importation of goods. (c) Waiver