
	Mr. Mark D. Roos has been an Interim Chief Financial Officer of Evoqua Water Technologies LLC since March 31, 2014. Mr. Roos has been Senior Vice President of Unifrax Corporation since May 2001. Mr. Roos served as Chief Financial Officer of Unifrax Corporation since 1995 and Vice President since February 1996. He joined The Carborundum Company (&#39;Carborundum&#39;) in 1985 and served in several financial planning, control and business strategy positions until he left in 1991 to become Vice President, Finance and Administration, of The Airolite Company, a metal products manufacturer. He rejoined Carborundum in 1993 as Director of Finance, Planning and Control.
