Nov 10, 2011. /Lesprom Network/. RockTenn reported earnings for the quarter ended September 30, 2011 of $1.17 per diluted share and adjusted earnings of $1.70 per diluted share. Net sales of $2,463.5 million for the 4Q fiscal 2011 increased $1,656.7 million over the 4Q fiscal 2010, primarily as a result of the full quarter impact of the May 27, 2011, Smurfit-Stone acquisition, as the company said in a press release received by Lesprom Network. Segment income, adjusted to eliminate $4 million of pre-tax acquisition inventory step-up was $241 million, up 81.9% over the prior year quarter, primarily as a result of the Smurfit-Stone acquisition. RockTenn Chairman and CEO James A. Rubright stated, “Our adjusted earnings of $1.70 per share reflect strong performance by all our businesses in the face of higher commodity input costs, and continued earnings accretion from the Smurfit-Stone acquisition, as synergies helped offset the higher input costs.” Corrugated Packaging segment net sales increased $1,407.5 million to $1,626.5 million in the 4Q of fiscal 2011 compared to the prior year quarter, due primarily to the Smurfit-Stone acquisition. Segment income, adjusted to eliminate $4 million of pre-tax acquisition inventory step-up, increased to $153.6 million in the 4Q of fiscal 2011 compared to $49.1 million in the prior year quarter. Corrugated segment EBITDA margin was 15.6% for the quarter. Consumer Packaging segment net sales increased $93.2 million in the 4Q of fiscal 2011 compared to the prior year quarter, primarily due to increased display sales including those from the Smurfit-Stone acquisition, higher paperboard selling prices and volumes and higher folding carton and interior partition selling prices and volumes. Segment income was $82.1 million in the 4Q of fiscal 2011 compared to $81.9 million in the prior year quarter as increased income from higher selling prices and volumes were largely offset by higher fiber, chemical, freight and energy costs partially offset by lower virgin fiber costs. Recycling and Waste Solutions segment net sales increased $318.7 million over the prior year 4Q to $355.8 million primarily due to the Smurfit-Stone acquisition and higher fiber prices. Segment income was $5.3 million in the fourth quarter of fiscal 2011 compared to $1.5 million in the 4Q the prior year. RockTenn is one of North America's leading integrated manufacturers of corrugated and consumer packaging and recycling solutions. The Company operates locations in the United States, Canada, Mexico, Chile, Argentina and China.