Acero Prime, the Mexican steel processing joint venture of Feralloy Mexico and United States Steel Export Co. de Mexico announced that Mitsui Steel Development Co., Inc. has made a 20% equity investment in Acero Prime.

Feralloy, the managing member, and United States Steel Export Co. de Mexico will each own 40%.

Mitsui's participation will provide additional opportunities to more fully utilize the venture's facilities and increase sales in Mexico.

Headquartered in San Luis Potosi, Acero Prime also operates plants in Toluca and Ramos Arizpe. Their business is centered around servicing the automotive and appliance industries in Mexico with logistics services and processed flat rolled steel on a just-in-time basis.

Feralloy Mexico is a subsidiary of Feralloy Corp. United States Steel Export Co. de Mexico is a subsidiary of United States Steel International, Inc. Mitsui Steel Development Co., Inc. is a subsidiary of Mitsui & Co.(U.S.A.), Inc.