Except to the extent provided in regulations, orders, instructions, licenses, or directives issued pursuant to this chapter, and notwithstanding any contract entered into or any license or permit granted prior to the date on which the President submits the report required under subsection (b) or (h)(1) of section
1903 of this title, there are blocked as of such date, and any date thereafter, all such property and interests in property within the United States, or within the possession or control of any United States person, which are owned or controlled by—