Animal Science Products, Inc. v. Hebei Welcome Pharmaceutical Co.

HALL, Circuit Judge:

This appeal arises from a multi-district antitrust class action brought against Defendants-Appellants Hebei Welcome Pharmaceutical and North China Pharmaceutical Group Corporation, entities incorporated under the laws of China. Plaintiffs-Appellees, Animal Science Products, Inc, and The Ranis Company, Inc., U.S. vitamin C purchasers, allege that Defendants conspired to fix the price and supply of vitamin C sold to U.S. companies on the international market in violation of Section 1 of the Sherman Act, 15 U.S.C. § 1, and Sections 4 and 16 of the Clayton Act, 15 U.S.C. §§ 4,…