An Australian man indicted by a US grand jury for conspiring to export sensitive military and other technology from the US to Iran has denied any knowledge of the matter.

David Levick, the general manager of ICM Components Inc spoke by telephone from his Sydney office today.

He said he had only heard about the charges less than an hour ago and was waiting to speak to his lawyer.

"All I can say at this stage is I only found out three quarters of an hour ago and I've got no comment until I find out exactly what's going on," he said.