ECCN 1C234
NPATZirconium with a hafnium content of less than 1 part hafnium to 500 parts zirconium by weight, as follows: metal, alloys containing more than 50% zirconium by weight, compounds, manufactures thereof, and waste or scrap of any of the foregoing.
What This ECCN Covers
ECCN 1C234 controls zirconium with a hafnium content of less than 1 part hafnium to 500 parts zirconium by weight, in the forms described in the entry. Low-hafnium "nuclear-grade" zirconium is used in reactor cladding, so it is controlled for Nuclear Nonproliferation and Anti-Terrorism reasons.
Who needs to check this?
Producers and exporters of nuclear-grade zirconium and the fabricators supplying reactor and chemical-process components.
Compliance tip
The control hinges on the low hafnium-to-zirconium ratio — ordinary zirconium typically falls outside. Distinguish this from hafnium itself (1C231). With NP among the reasons, apply Part 744 nuclear end-use diligence and confirm the Country Chart.
Control Reasons
Items controlled for nuclear nonproliferation 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.