; (K) knowingly, directly or indirectly, purchased or otherwise acquired significant types or amounts of food or agricultural products from the Government of North Korea; (L) knowingly, directly or indirectly, engaged in, facilitated, or was responsible for the exportation of workers from North Korea in a manner intended to generate significant revenue, directly or indirectly, for use by the Government of North Korea or by the Workers’ Party of Korea; (M) knowingly conducted a significant transaction or transactions in North Korea’s transportation, mining, energy, or financial services industries; or (N) except as specifically approved by the United Nations Security Council, and other than through a correspondent account as described in subsection (a)(14), knowingly facilitated the operation of any branch, subsidiary, or office of a North Korean financial institution. . (2) Effective date The amendments made by paragraph (1) take effect on the date of the enactment of this Act and apply with respect to conduct described in subparagraphs (D) through (N) of section 104(b)(1) of the North Korea Sanctions and Policy Enhancement Act of 2016, as added by paragraph (1), engaged in on or after such date of enactment. (c) Mandatory and discretionary asset blocking Section 104(c) of the North Korea Sanctions and Policy Enhancement Act of 2016 ( 22 U.S.C. 9214(c) ) is amended— (1) by striking of a designated person and inserting of a person designated under subsection (a) ; (2) by striking The President and inserting the following: (1) Mandatory asset blocking The President