OMC International is an Australian maritime engineering company specialising in ship motion analysis, Under Keel Clearance (UKC) systems, channel design, dynamic moored vessel analysis, and port optimisation. Over the past 25 years, its unique Dynamic Under Keel Clearance (DUKC®) system has improved the safety and efficiency of large ships moving through shallow waterways. DUKC® has facilitated 165,000 safe transits at more than 120 ports, terminals and waterways worldwide, delivering more than US$10 billion in economic benefits to port users.