ECCN 8C001

NSAT

'Syntactic foam' designed for underwater use and having all of the following .

Category: 8 - MarineProduct Group: C - MaterialsLast Updated: 2026-04-10

What This ECCN Covers

ECCN 8C001 controls "syntactic foam" designed for underwater use at marine depths exceeding 1,000 meters and meeting the additional criteria in the entry. This buoyancy material is essential to deep-diving submersibles and ROVs/AUVs, and is controlled for National Security and Anti-Terrorism reasons.

Who needs to check this?

Manufacturers and exporters of deep-sea buoyancy materials and the submersible and ROV builders who source them.

Compliance tip

Control is specific to syntactic foam rated for depths beyond 1,000 m with the listed properties — shallower-rated buoyancy materials fall outside. Confirm the depth rating and properties against the entry, and check the NS and AT Country Chart columns.

Reviewed by Jack Tan · Last reviewed: Jun 4, 2026

Items Covered

  • a.Designed for marine depths exceeding 1,000 m; and
  • b.A density less than 561 kg/m3.

Control Reasons

NSNational Security

Items controlled for national security reasons under multilateral export control regimes.

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

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