Home/American Shipper/Charleston TEUs increase 4% in June American Shipper Charleston TEUs increase 4% in June FreightWaves Staff · Wednesday, July 17, 2013 Facebook Twitter Pinterest LinkedInContainer traffic at the Port of Charleston grew 4 percent to 125,257 TEUs in June compared to the same month last year, according to the South Carolina Ports Authority. June also capped a strong first half for the South Atlantic port.