J. Matthew Singleton has served as a member of our Board and as Chairman of the Audit Committee since May 2014. In October 2011, Mr. Singleton retired from his position as Executive Vice President and Chief Financial Officer of CitationAir (formerly CitationShares LLC), a privately held jet services company wholly-owned by Textron Inc., a public industrial conglomerate. He had served in this position since 2000. Mr. Singleton has extensive financial, accounting and transactional experience, including through his role as Managing Director, Executive Vice President and Chief Administrative Officer of CIBC World Markets, an investment banking company, wholly-owned by the Canadian Imperial Bank of Commerce, a public company. In that position, which he held from 1994 through 1997, he served as a senior officer actively supervising the chief financial officer, the chief tax officer, the general counsel and the head of operations, among others. He served for 20 years, from 1974 to 1994, at Arthur Andersen & Co., a public accounting firm, including ten years as a partner and as Partner-in-Charge of the Metro New York Audit and Business Advisory Practice from 1992 through 1994. Throughout his career at Arthur Andersen, he held direct responsibility for clients in addition to any management or administrative duties. Earlier in his Arthur Andersen career, he served as a Practice Fellow on secondment to the Financial Accounting Standards Board, a private organization responsible for establishing financial accounting and reporting standards in the United States. From 2003 until 2014, Mr. Singleton served as a director of Cubist Pharmaceuticals Inc. ( Cubist ), and as Audit Committee Chair from 2004 until 2014. In that position, he led the Cubist Board s oversight and assessment of the performance of Cubist and its public accountants in the preparation, audit and evaluation of Cubist s financial statements. Mr. Singleton previously served as an independent director of Salomon Reinvestment Company Inc., a privately held investment services company. Mr. Singleton received an AB in Economics cum laude from Princeton University in 1974 and an MBA from New York University with a focus in Accounting in 1977. Mr. Singleton was a Certified Public Accountant in the State of New York from 1977 until 1994, and was continuously in good standing. We believe that Mr. Singleton s financial, accounting and business expertise provide him with the qualifications and skills to serve as a member of our Board, and are of particular importance as we continue to finance our operations.