31 C.F.R. § 500.412 Process vs. manufacture.
Title 31 - Money and Finance: Treasury
A commodity subject to §500.204 remains subject howsoever it has been processed. It should not be assumed that a commodity which has undergone operations other than those listed in §500.204(a)(1), has become a manufactured form of the commodity rather than a processed form thereof. In case of question, a ruling should be requested from the Office of Foreign Assets Control. Requests for rulings in the form of license applications or otherwise should include adequate technical detail. It should be noted that it is quite possible for merchandise to have North Korea, North Viet-Nam, Cambodia, or South Viet-Nam as its “country of origin” for Foreign Assets Control purposes while having some other country as its “country of origin” for marking or statistical purposes. [41 FR 16554, Apr. 20, 1976]
Title 31: Money and Finance: Treasury
PART 500—FOREIGN ASSETS CONTROL REGULATIONS
Subpart D—Interpretations
§ 500.412 Process vs. manufacture.

