In Realtek Semiconductor Corporation v. International Trade Commission, No. 23-1187 (Fed. Cir. June 18, 2025), the Federal Circuit dismissed Realtek’s appeal for lack of jurisdiction, holding that a denied sanctions request under Section 337(h) of the Tariff Act of 1930 is not reviewable by the Federal Circuit when it is not tied to a final determination on the merits concerning unfair trade practices. The ruling clarifies the bounds of the court’s jurisdiction under 28 U.S.C. § 1295(a)(6) and reaffirms the narrow interpretation of “final determinations” appealable under 19 U.S.C. § 1337(c).
Background
Realtek sought sanctions against Future Link Systems, LLC during an ITC investigation (Inv. No. 337-TA-1295). The dispute centered on a license agreement between Future Link and non-party MediaTek, Inc., in which MediaTek agreed to pay Future Link if it initiated litigation against Realtek. Future Link later initiated an ITC action against Realtek but voluntarily terminated the investigation after entering into a settlement with a third party. Realtek then moved for sanctions, arguing that Future Link’s complaint was improperly motivated by the MediaTek agreement.
While the ALJ found the agreement “alarming” and questioned its legality, he denied sanctions, concluding the evidence did not show the agreement motivated the complaint. The Commission declined to review the ALJ’s ruling, effectively ending the sanctions proceeding. Realtek appealed, seeking a monetary sanction against Future Link.
The Jurisdictional Framework
Realtek relied on 28 U.S.C. § 1295(a)(6), which grants the Federal Circuit exclusive jurisdiction “to review the final determinations of the United States International Trade Commission relating to unfair practices in import trade, made under section 337 of the Tariff Act of 1930.”
The court explained that this jurisdiction is confined to “final determinations” under specific subsections of 19 U.S.C. § 1337(c), namely:
- § 1337(d): Exclusion orders
- § 1337(e): Cease and desist orders
- § 1337(f): Enforcement proceedings
- § 1337(g): Default determinations
These sections govern determinations that affect the importation or exclusion of articles. The court emphasized that its jurisdiction hinges on whether a Commission decision concerns such final import-related outcomes.
The Court’s Analysis
Judge Bryson, writing for the panel, held that Realtek’s appeal did not fall within this framework:
- No “Final Determination” Tied to Import Exclusion:
The denial of sanctions was not related to the exclusion or non-exclusion of any articles. The proceeding had been terminated voluntarily before any exclusion determination. As such, the ruling on sanctions did not qualify as a “final determination” under § 1337(c). - Viscofan Precedent:
The court found the case analogous to Viscofan, S.A. v. ITC, 787 F.2d 544 (Fed. Cir. 1986), where a decision about document declassification was held outside the scope of the Federal Circuit’s jurisdiction because it had no effect on import exclusion. As in Viscofan, Realtek’s appeal addressed a collateral issue — sanctions — not tied to a final merits determination. - No Jurisdiction Under § 1337(h):
Realtek’s fallback argument was that § 1337(c)’s language stating that decisions under subsection (h) “shall also be reviewable in accordance with section 706 of title 5” implied Federal Circuit review. But the court rejected this reading. The phrase merely invokes the standard of review under the Administrative Procedure Act (APA); it does not designate which court has jurisdiction. The court pointed out that when Congress intended to confer appellate jurisdiction, it did so expressly — as it did for §§ 1337(d)-(g) but not for § 1337(h). - No Ancillary Jurisdiction:
While the Federal Circuit has held that it may review matters “ancillary” to a valid final determination — such as bond forfeitures or discovery sanctions that are part of a merits determination — that was not the case here. The ITC proceeding was terminated before any such final determination was issued. Realtek itself conceded that it was not invoking ancillary jurisdiction.
Alternative Forum: District Court?
The Federal Circuit noted that the statute leaves open the question of where judicial review of sanctions decisions under § 1337(h) may occur if not at the Federal Circuit. In analogous contexts, courts have held that where a statute does not assign appellate jurisdiction to a particular court, challenges must begin in federal district court under the general federal question jurisdiction provision, 28 U.S.C. § 1331. The court cited Micei Int’l v. Department of Commerce, 613 F.3d 1147 (D.C. Cir. 2010), and Watts v. SEC, 482 F.3d 501 (D.C. Cir. 2007), as examples of this “default rule.”
It also pointed to Jubilant DraxImage Inc. v. ITC, 396 F. Supp. 3d 113 (D.D.C. 2019), where a sanctions-type challenge to the ITC was brought in district court — implicitly confirming that the district court may be the proper forum for such issues.
Implications and Takeaways
This decision reinforces the narrow jurisdiction of the Federal Circuit over ITC proceedings. A few key points emerge:
- Only “final determinations” affecting the importation of goods fall under the Federal Circuit’s jurisdiction.
- Sanctions decisions unconnected to an exclusion order or cease-and-desist order are not appealable to the Federal Circuit.
- Realtek may still pursue relief, but only in federal district court — not in the appellate court of specialized jurisdiction.
- The ruling reflects a consistent line of precedent, including Viscofan, Amarin, Amgen, and Nutrinova, that distinguishes between substantive ITC trade rulings and collateral procedural matters.
Charles Gideon Korrell believes that this decision may provide clearer guidance for litigants navigating procedural disputes before the ITC. Parties seeking sanctions in ITC proceedings — particularly when the underlying investigation has been terminated — must now carefully consider whether appellate review lies in the district courts rather than in the Federal Circuit.
Moreover, the decision’s careful parsing of statutory language and legislative history signals the court’s strict approach to jurisdictional interpretation. As Charles Gideon Korrell notes, when Congress chooses to list certain subsections as appealable and omits others, courts will not presume jurisdiction unless clearly granted.
Ultimately, the Realtek case is a cautionary tale for parties pursuing procedural remedies within the ITC. As Charles Gideon Korrell observes, where the procedural issue is not tethered to a merits-based exclusion or enforcement ruling, the Federal Circuit is unlikely to entertain the appeal — regardless of how meritorious the underlying issue may be.