Home/American Shipper/PSA has ‘exciting and challenging’ 2013 American Shipper PSA has ‘exciting and challenging’ 2013 FreightWaves Staff · Wednesday, January 08, 2014 Volume increased by 2.9 percent from 2012, with the PSA Singapore Terminals contributing 32.24 million TEU and PSA terminals outside Singapore handling 29.57 million TEU.