About
ONEnergy

Directors

Stephen J.J. Letwin

Chairman of the Board

Mr. Letwin has been a member of the ONEnergy board since 2013. He’s been President and Chief Executive Officer of Mancal Corporation since February 2020. Mr. Letwin has been a member of the Mancal Board of Directors since Mancal’s inception in 1999. Prior to Mancal, Mr. Letwin was President and Chief Executive Officer of IAMGOLD Corporation for over nine years and was also a member of their Board of Directors. Prior to joining IAMGOLD, Mr. Letwin was Executive Vice-President, Gas Transportation & International of Enbridge, Inc. and was based in Houston, Texas. While with Enbridge, he had overall responsibility for Enbridge Energy Partners, L.P. and its U.S. Operations.

David A. Rattee

Mr. Rattee has served as a director of the corporation since 2010. He’s been the Chairman, President and Chief Executive Officer of CIGL Holdings, a private investment holding company, since 1992. During his career, Mr. Rattee has served as a Chief Executive Officer, Chief Financial Officer, a Director and Chair of the Audit Committee of a number of public companies in Canada and the United States. He’s a Graduate of the BComm program at McGill University in Montreal and earned a Chartered Accountant designation from the Quebec Institute. Elsewhere, he received an MBA from the Richard Ivey School of Business at the University of Western Ontario.

Lawrence Silber

Mr. Silber has served as a Director of the corporation since 2010. Mr. Silber is a Corporate/Commercial Lawyer and Partner practicing with the law firm Kelly Santini LLP in Ottawa. Mr. Silber specializes in corporate/commercial law with particular expertise in income tax, estates and succession planning. He advises clients on a broad range of business matters. These include private equity investors in domestic equity and debt financings, mergers and acquisitions, licensing transactions, corporate reorganizations, purchase and sale transactions, joint ventures as well as complex commercial agreements. Mr. Silber has been an instructor in the Business Law section of the Ontario Bar Admission Course. He currently teaches real property law for the Ontario Real Estate Association. Elsewhere, he volunteers his time with several community organizations and has served on several boards.

Stephen J.J. Letwin

Chairman
Mr. Letwin is the Chairman for ONEnergy Inc. Mr. Letwin brings over 30 years of experience from the highly competitive resource sector and specializes in corporate finance, operational management and merger and acquisitions. Mr. Letwin holds an MBA from the University of Windsor, is a Chartered Professional Accountant (Certified General Accountant), a graduate of McMaster University (B.Sc., Honours), and a graduate of the Harvard Advanced Management Program.

Ray de Ocampo

Chief Financial Officer
Ray de Ocampo is the Chief Financial Officer for ONEnergy Inc. and is responsible for the financial operations for the company. Mr. de Ocampo is a Chartered Professional Accountant (Chartered Accountant), and brings more than 25 years of finance leadership experience. Previously, Mr. de Ocampo was VP Finance for ONEnergy upon its acquisition of Sunwave Gas & Power Inc. and was Head of Finance for OZZ Clean Energy, the former parent of Sunwave. Prior to this, he was a member of the founding senior management team that launched Wind Mobile, Canada’s fourth largest wireless telecom provider. Mr. de Ocampo has held senior finance positions in high growth or evolving environments, focusing on creating or renewing the finance function.