In any civil action in the Court of International Trade, the court shall have exclusive jurisdiction to render judgment upon any counterclaim, cross-claim, or third-party action of any party, if (1) such claim or action involves the imported merchandise that is the subject matter of such civil action, or (2) such claim or action is to recover upon a bond or customs duties relating to such merchandise.
28 U.S. Code § 1583. Counterclaims, cross-claims, and third-party actions
A prior section 1583, act June 25, 1948, ch. 646, 62 Stat. 943, related to certain cases of exclusive jurisdiction of the Customs Court, prior to repeal by Pub. L. 91–271, title I, § 111, June 2, 1970, 84 Stat. 278.