The Port of Long Beach is the second busiest container seaport in the United States and is a leading gateway for international trade. Founded in 1911 and having just celebrated its centennial year, it has grown to more than 3,200 acres and moves more than $150 billion in trade a year. East Asia trade accounts for more than 90 percent of Long Beach shipments with the top trading partners being China, Japan, South Korea and Taiwan. Also referred to as the City of Long Beach's Harbor Department, the Port of Long Beach is governed by the Board of Harbor Commissioners (BOHC). The Port's Executive Director is appointed by the Commission and is responsible for overall Port activities. The Executive Director is supported by a Deputy Executive Director and four Managing Directors: one each over Finance and Administration; Trade Development and Port Operations; Engineering; and Environmental Affairs and Planning. The Port employs approximately 530 staff and generates annual operating revenues in excess of $375 million. The Port is a recognized environmental leader, with award-winning environmental programs such as the Green Port Policy.