That's a very good question.
Most of these terminal operators are subsidiaries of large shipping corporations that own and operate maritime vessels, lease terminal space at ports, and sometimes even own other subsidiaries in the trucking or railroad sectors. These huge corporate conglomerates don't really operate independently . . . they join with other similar companies and function as shipping cartels with price-fixing agreements, preferential shipping rates for different routes, etc. The problem is that the business arrangements within these global "alliances" are in direct violation of U.S. anti-trust laws, so these companies effectively circumvent U.S. law by operating out of countries where the rules in this regard are not nearly as strict. This is why many of these companies are officially headquartered in places like Switzerland, the Bahamas, the Cayman Islands, etc.
Seems that that is not good for Americans in any case being that if there is a conflict with US businesses, some type of STUPID world court must hear the case. So, at best, US citizens and companies can expect case rulings, ommittance of facts, corrupt leadership, etc., parallel to that of Coughin Anus (Kofi Anan)and the UN.