The Manitowoc Co. reported record net sales and earnings during the first quarter of 2008, which ended March 31. Net sales totaled US$1.08 billion in the first quarter of 2008, an increase of 25% from the first quarter of 2007. Reported earnings per diluted share were $0.78 for the first quarter of 2008, an increase of 56% compared to the first quarter of 2007.