Chicago, 2 June, 2010 – Mayer Brown, a leading global law firm, is advising Progress Rail Services, a wholly owned subsidiary of Caterpillar, in its purchase of Electro-Motive Diesel from Berkshire Partners LLC and Greenbriar Equity Group LLC for $820 million in cash.

The Mayer Brown deal team featured attorneys from the firm’s Chicago office: Corporate & Securities partners Paul Crimmins and John Sagan and associates Rachel Spehler, Joe Hable and Gordon Palmquist; Employment and Benefits partners Debbie Hoffman and Marcia Goodman; Tax Transactions partner Jim Barry and associate Lee Morlock; Restructuring, Bankruptcy & Insolvency partner Stuart Rozen; Real Estate partner Patrick McNerney and associate Ryan Green; and Litigation partner Mike Gill, counsel Maritoni Kane and associate Sarah Reynolds.