ECCN 5C991
ATPreforms of glass or of any other material optimized for the manufacture of optical fibers controlled by 5A991.
What This ECCN Covers
ECCN 5C991 controls preforms of glass or any other material optimized for the manufacture of optical fibers controlled in Category 5 Part 1, as defined in the entry. These fiber preforms are the feedstock for drawing controlled optical fiber and are controlled for Anti-Terrorism reasons.
Who needs to check this?
Manufacturers and exporters of optical-fiber preforms and the fiber producers that draw fiber from them.
Compliance tip
Tie the preform to the optical fiber it is optimized to produce. AT-only control limits licensing to a destination list; verify the Country Chart and screen all parties against the Entity and SDN lists.
Control Reasons
Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.
Disclaimer
This information is for reference only. For official classifications, consult BIS or a qualified export control professional.