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

Decided June 14, 2018. Ruth Bader Ginsburg delivered the opinion of the Court.

Docket 16-1220 · 585 U.S. 33 (2018) · Cited 77 times

Holding

A federal court determining foreign law under Federal Rule of Civil Procedure 44.1 should accord respectful consideration to a foreign government’s submission, but the court is not bound to accord conclusive effect to the foreign government’s statements.

The Court’s statement of the holding, from the opinion’s syllabus. The syllabus is prepared by the Reporter of Decisions and is not part of the opinion of the Court. Read the official opinion for authority.

How the Justices voted

Decided 9–0.

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. The lineup is the syllabus’s disposition of who wrote and joined each opinion. Source: the opinion’s syllabus (supremecourt.gov).

Precedents cited

Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.

• United States v. Pink · 315 U.S. 203 (1942)
• Arizonans for Official English v. Arizona · 520 U.S. 43 (1997)
• Wainwright v. Goode · 464 U.S. 78 (1983)
• Mullaney v. Wilbur · 421 U.S. 684 (1975)
• United States v. Detroit Timber & Lumber Co. · 200 U.S. 321 (1906)
• Virginia v. American Booksellers Assn., Inc. · 484 U.S. 383 (1988)

Official text

Read the official opinion (PDF, supremecourt.gov)

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Source: Supreme Court of the United States, slip opinions (2018). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-08-15. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).