; and (B) the Committee on Foreign Relations, the Committee on Banking, Housing, and Urban Affairs, and the Committee on Appropriations of the Senate. 312. Sanctions with respect to foreign persons that engage in certain transactions (a) Imposition of sanctions (1) In general On and after the date that is 180 days after the date of the enactment of this Act, the President shall impose the sanctions described in subsection (b) with respect to a foreign person if the President determines that the foreign person, on or after such date of enactment, knowingly engages in an activity described in paragraph (2). (2) Activities described A foreign person engages in an activity described in this paragraph if the foreign person— (A) knowingly provides significant financial, material, or technological support to, or knowingly engages in a significant transaction with— (i) the Government of Syria (including any entity owned or controlled by the Government of Syria) or a senior political figure of the Government of Syria; (ii) a foreign person that is a military contractor, mercenary, or a paramilitary force knowingly operating in a military capacity inside Syria for or on behalf of the Government of Syria, the Government of the Russian Federation, or the Government of Iran; or (iii) a foreign person subject to sanctions pursuant to the International Emergency Economic Powers Act ( 50 U.S.C. 1701 et seq.) with respect to Syria or any other provision of law that imposes sanctions with respect to Syria; (B) knowingly sells or provides significant goods, services, technology, information, or other support that significantly facilitates the maintenance or expansion of the Government of Syria's domestic production of natural gas, petroleum, or petroleum products