SELMA — American Apparel Inc. has acquired a Greenville, S.C.-based company that will guarantee jobs for 1,400 employees throughout Alabama for at least a year.

Additionally, the move increases American Apparel’s sales by $40 million for the 2008-09 fiscal year and makes the company the largest manufacturer of military work uniforms in the nation.

Chief Operating Officer Jim Hodo said Friday that American Apparel had purchased the majority of Wellstone Apparel LLC’s assets. The contract will close between 60 and 90 days following government approval.

Wellstone Apparel will consolidate two plants in Mississippi, which will be absorbed by American Apparel. The purchase also allows American Apparel to bring back the majority of its laid-off workers at its Centre and Oneonta plants.