The date of violation was 30 September, 2007, six years ago. That's a long time ago, in the business of international trade. It is not known whether the delay in imposing the fine is due to the work backlog at OFAC, or in the investigation.
OFAC stated that the company "acted with reckless disregard for US sanctions requirements." It also did not fully cooperate with the OFAC investigation. Ironically, the shipment would probably have qualified for an OFAC license, according to the filing.