The American Iron and Steel Institute (AISI) reported that for the month of June 2011, U.S. steel mills shipped 7,639,108 net tons, a 3.5% increase from the 7,380,064 net tons shipped in May 2011 and a 3.7% increase from the 7,367,203 net tons shipped in June 2010. Shipments year-to-date in 2011 are 44,779,857, a 5.8% increase versus 2010 shipments for six months. A month-to-month comparison of shipments shows the following changes: tin plate, up 14%; cut-length plate, up 11%; and hot-rolled sheet, up 2%.