; (2) has knowingly engaged in any activity that materially contributes to the supply, sale, or direct or indirect transfer to or from the Houthi movement in Yemen, its successor entities, entities that own or control, or are owned or controlled by, the Houthi movement, or entities acting for or on behalf of the Houthi movement, of any firearms or ammunition, battle tanks, armored vehicles, artillery or mortar systems, aircraft, attack helicopters, warships, missiles or missile systems, or explosive mines of any type (as such terms are defined for the purpose of the United Nations Register of Conventional Arms), ground-to-air missiles, unmanned aerial vehicles, or related materiel, including spare parts; (3) has knowingly provided any technical training, financial resources or services, advice, other services or assistance related to the supply, sale, transfer, manufacture, maintenance, or use of arms and related materiel described in paragraph (2) to the Houthi movement in Yemen, its successor entities, entities that own or control, or are owned or controlled by, the Houthi movement, or entities acting for or on behalf of the Houthi movement; (4) is a successor entity to a person described in paragraph (1), (2), or (3); (5) is an entity that owns or controls, or is owned or controlled by, a person described in paragraph (1), (2), or (3); or (6) is an entity that is acting for, or on behalf of, a person referred to in paragraph (1), (2), or (3). (c) Sanctions described (1) In general The sanctions described in this subsection are the following: (A) Asset blocking In accordance with the International Emergency Economic Powers Act ( 50 U.S.C. 1701 et seq.), the President shall block all transactions in property, or interests in property, of a person subject to subsection (b) if such property or interests in property— (i) are in the United States; (ii) are transported into the United States