ECCN
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1C007
1C007 Ceramic powders, ceramic “matrix” “composite” materials and 'precursor materials,' as follows (see List of Items Controlled).
- Category
- Category 1—Special Materials and Related Equipment, Chemicals, “Microorganisms,” and “Toxins”
- Product group
- C. “Materials”
Reason for Control
- NS
- MT
- AT
Official text
License Requirements
Reason for Control:
NS, MT, AT
Control(s) Country chart(see Supp. No. 1 to part 738)
- NS applies to entire entry NS Column 2
- MT applies to items in 1C007.c when the dielectric constant is less than 6 at any frequency from 100 MHz to 100 GHz for use in “missile” radomes MT Column 1
- AT applies to entire entry AT Column 1
Reporting Requirements
See § 743.1 of the EAR for reporting requirements for exports under License Exceptions, and Validated End-User authorizations.
List Based License Exceptions (See Part 740 for a Description of All License Exceptions)
LVS: $5,000, except N/A for MT and for 1C007.e
GBS: N/A
Special Conditions for STA
STA: License Exception STA may not be used to ship any item in 1C007.c entry to any of the destinations listed in Country Group A:6 (See Supplement No.1 to part 740 of the EAR).
List of Items Controlled
Related Controls: See also 1C107
Related Definitions: N/A
Items: a. Ceramic powders of titanium diboride (TiB2) (CAS 12045-63-5) having total metallic impurities, excluding intentional additions, of less than 5,000 ppm, an average particle size equal to or less than 5 µm and no more than 10% of the particles larger than 10 µm;
b. [Reserved]
c. Ceramic “matrix” “composite” materials as follows:
c.1. Ceramic-ceramic “composite” materials with a glass or oxide-“matrix” and reinforced with any of the following:
c.1.a. Continuous fibers made from any of the following materials:
c.1.a.1. Al2O3 (CAS 1344-28-1); or
c.1.a.2. Si-C-N; or
Note:
1C007.c.1.a does not apply to “composites” containing fibers with a tensile strength of less than 700 MPa at 1,273 K (1,000 °C) or tensile creep resistance of more than 1% creep strain at 100 MPa load and 1,273 K (1,000 °C) for 100 hours.
c.1.b. Fibers being all of the following:
c.1.b.1. Made from any of the following materials:
c.1.b.1.a. Si-N;
c.1.b.1.b. Si-C;
c.1.b.1.c. Si-Al-O-N; or
c.1.b.1.d. Si-O-N; and
c.1.b.2. Having a “specific tensile strength” exceeding 12.7 × 10 3 m;
c.2. Ceramic “matrix” “composite” materials with a “matrix” formed of carbides or nitrides of silicon, zirconium or boron;
N.B.:
For items previously specified by 1C007.c see 1C007.c.1.b.
d. [Reserved]
N.B.:
For items previously specified by 1C007.d see 1C007.c.2.
e. 'Precursor materials' “specially designed” for the “production” of materials controlled by 1C007.c, as follows:
e.1. Polydiorganosilanes;
e.2. Polysilazanes;
e.3. Polycarbosilazanes;
Technical Note:
For the purposes of 1C007, 'precursor materials' are special purpose polymeric or metallo-organic materials used for the “production” of silicon carbide, silicon nitride, or ceramics with silicon, carbon and nitrogen.
f. [Reserved]
N.B.:
For items previously specified by 1C007.f see 1C007.c.1.a.
ecfr-15cfr774-supp1-2026-08-28 · effective 2026-08-28
Issue date 2026-08-28. Amendment date 2026-08-28.
- eCFR Commerce Control List (15 CFR 774, Supplement No. 1)www.ecfr.gov
- eCFR versioner XML captured at ingestwww.ecfr.gov
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