ECCN 1C241

NPAT

Rhenium and alloys containing rhenium .

Category: 1 - MaterialsProduct Group: C - MaterialsLast Updated: 2026-04-10

What This ECCN Covers

ECCN 1C241 controls rhenium and alloys containing rhenium, as defined in the entry. Rhenium is a high-temperature metal used in superalloys and catalysts with proliferation-relevant uses, so it is controlled for Nuclear Nonproliferation and Anti-Terrorism reasons.

Who needs to check this?

Producers and exporters of rhenium metal, rhenium-bearing superalloys, and rhenium catalysts for aerospace and refining applications.

Compliance tip

Confirm the rhenium content and form against the entry. With NP among the reasons, license exceptions are limited — verify the Country Chart and apply nuclear/high-temperature end-use diligence.

Reviewed by Jack Tan · Last reviewed: Jun 5, 2026

Items Covered

  • 1. Alloys containing 90% by weight or more of rhenium;
  • 2. Alloys containing 90% by weight or more of any combination of rhenium and tungsten; and
  • b.Having both of the following characteristics:
  • 1. In forms with a hollow cylindrical symmetry (including cylinder segments) with an inside diameter between 100 mm and 300 mm; and
  • 2. A mass greater than 20 kg.

Control Reasons

NPNuclear Nonproliferation

Items controlled for nuclear nonproliferation reasons.

Column 1: YesColumn 2: No
ATAnti-Terrorism

Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.

Column 1: YesColumn 2: No

Disclaimer

This information is for reference only. For official classifications, consult BIS or a qualified export control professional.

Official Reference