1C117 Category 1C

Materials for the fabrication of missile “parts” or “components” for rockets or missiles capable of achieving a “range” equal to or greater than 300 km, as follows (see List of Items Controlled).

Category 1: Special Materials and Related Equipment, Chemicals, “Microorganisms,” and “Toxins”

Reasons for control

• MT: Missile technology
• AT: Anti-terrorism

Country chart

List-based license exceptions

Items

1. Items: a. Tungsten and alloys in particulate form with a tungsten content of 97% by weight or more and a particle size of 50 × 10−6 m (50 µm) or less;
2. b. Molybdenum and alloys in particulate form with a molybdenum content of 97% by weight or more and a particle size of 50 × 10−6 m (50 µm) or less;
3. c. Tungsten materials in the solid form having all of the following:
4. c.1. Any of the following material compositions:
5. c.1.a. Tungsten and alloys containing 97% by weight or more of tungsten;
6. c.1.b. Copper infiltrated tungsten containing 80% by weight or more of tungsten; or
7. c.1.c. Silver infiltrated tungsten containing 80% by weight or more of tungsten; and
8. c.2. Able to be machined to any of the following products:
9. c.2.a. Cylinders having a diameter of 120 mm or greater and a length of 50 mm or greater;
10. c.2.b. Tubes having an inner diameter of 65 mm or greater and a wall thickness of 25 mm or greater and a length of 50 mm or greater; or
11. c.2.c. Blocks having a size of 120 mm × 120 mm × 50 mm or greater.

Related controls

See 1C226.

Source: eCFR, version 2026-08-01, retrieved 2026-08-20T04:04:59+00:00.