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Clarence L. Granger
Clarence L. Granger has served as our Chief
Executive Officer since November 2002, as our President and and
Chief Operating Officer since March 1999 and as a director since
May 2002. Mr. Granger served as our Executive Vice President
and Chief Operating Officer from January 1998 to March 1999 and
as our Executive Vice President of Operations from April 1996
to January 1998. Prior to joining Ultra Clean in April 1996,
he served as Vice President of Media Operations for Seagate Technology
from 1994 to 1996. Prior to that, Mr. Granger worked for HMT
Technology as Chief Executive Officer from 1993 to 1994, as Chief
Operating Officer from 1991 to 1993 and as President from 1989
to 1994. Prior to that,Mr. Granger worked for Xidex as Vice President
and General Manager, Thin Film Disk Division, from 1988 to 1989,
as Vice President, Santa Clara Oxide Disk Operations, from 1987
to 1988, as Vice President, U.S. Tape Operations, from 1986 to
1987 and as Director of Engineering from 1983 to 1986.Mr. Granger
holds a master of science degree in industrial engineering from
Stanford University and a bachelor of science degree in industrial
engineering from the University of California at Berkeley.

David T. ibnAle
David ibnAle has served as a director of Ultra Clean since November
2002 and served as our lead director from February 2005 to February
2007. Mr. ibnAle is a Managing Partner of Augusta Columbia Capital
Group, a leading middle-market technology investment firm. Prior
to joining Augusta Columbia, Mr. ibnAle was a Managing Director
of TPG Growth from May 2008 to October 2011, and an investment
professional and Partner at Francisco Partners from December 1999
to March 2008. Prior to joining Francisco Partners, Mr. ibnAle
was an investment professional with Summit Partners, and prior
to that he worked in the Corporate Finance Department of Morgan
Stanley. Mr. ibnAle has served on the boards of directors of a
number of technology companies, including Artel, PowerPlan Consultants,
Metrologic Instruments, Vitronics-Soltec and Mitel Communications.
Mr. ibnAle is also a Trustee of the American Conservatory Theater.
Mr. ibnAle holds an A.B. in Public Policy and an A.M. in International
Development Policy from Stanford University, and a Masters in Business
Administration from the Stanford University Graduate School of
Business.

Leonid Mezhvinsky
Leonid Mezhvinsky has served as a director of Ultra Clean since
February 2007. Mr. Mezhvinsky served as our President from June
2006 to December 2007, following our acquisition of Sieger Engineering,
Inc. He has more than two decades of management experience and
in-depth knowledge of machine shop, electro mechanical assemblies
and system integration utilized in semiconductor, medical, and
biotech OEM products. Prior to joining Ultra Clean, Mr. Mezhvinsky
was President and Chief Executive Officer of Sieger Engineering,
Inc., which he joined in 1982. Mr. Mezhvinsky holds the equivalent
of a bachelor of science in industrial automation from College
of Industrial Automation, Odessa, Ukraine.
Sue Billat
Sue Billat has served as a director of Ultra Clean since March
2004. Ms. Billat has been a principal at Benchmark Strategies,
which she founded in 1990, since 2002. Prior to that, she was a
Managing Director and senior research analyst for semiconductor
equipment and foundries at Robertson Stephens & Company from
1996 to 2002 and senior vice president of marketing for Ultratech
Stepper from 1994 to 1996. Ms. Billat holds a bachelor of science
degree and masters in physics from Georgia Tech and completed further
graduate studies in electrical engineering and engineering management
at Stanford University.
John Chenault
John Chenault has served as a director of Ultra Clean since June
of 2009. He worked at Novellus from 1991 to 2005 and held numerous
executive positions including CFO, Executive Vice President of
Sales and Service, Executive Vice President of Operations and
Executive Vice President of Business Operations.
Mr. Chenault's professional life began at Texas Instruments, where
he was hired after completing college in 1973 and worked until
1978. From 1978 to 1984, he held several management positions with
Recognition Equipment, Inc,. and from 1986 to 1998, he served as
VP and General Manager of Carrol Touch, a subsidiary of AMP, Inc.
Prior to Novellus, Mr. Chenault served as VP and General Manager
of Veeco Instruments from 1984 to 1986, and again from 1988 to
1991.
Mr. Chenault holds a bachelor's degree in economics and received
his MBA in general business, both from Western Illinois University.
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