ATMI Inc.

Doug Neugold is responsible for directing ATMI's worldwide operations. He was appointed President of ATMI in May 2000, Chief Operating Officer and a Director in July 2003, and Chief Executive Officer in 2005. ATMI, The Source of Semiconductor Process Efficiency is introducing new products, sales, and services concepts to the semiconductor industry under Doug's leadership. Using ATMI's unique sets of product technologies, he is pioneering new performance-based sales strategies based upon ATMI's technological prowess that offer customers lower cost of ownership for their process tools and improves their production yields. Previously, Doug held the position of Executive Vice-President for ATMI's Materials business, responsible for all ATMI's specialty materials businesses. He joined ATMI in January 1998 as NovaSource Vice-President, subsequently becoming President. He was previously President of Johnson-Matthey's Semiconductor Packages Group. In July 2003, Doug was confirmed as a director of Semiconductor Equipment and Materials International (SEMI), the trade association serving the worldwide semiconductor equipment, materials, and flat panel display industries. Doug began work in the electronics industry in 1982 selling capital equipment and chemicals. He joined Johnson-Matthey as a Sales Engineer and was subsequently promoted through a succession of product, sales, marketing, and management positions, including Director and General Manager of Singapore Operations, Director and General Manager of Asian Operations, Vice-President of Semiconductor Packages Group, to President of the Semiconductor Package Group. Doug has a B.Sc. degree from Clarkson University.

Ellen Harmon has served as Executive Vice President, Chief Legal Officer and Secretary since joining ATMI in January 2008. Prior to joining ATMI, Ellen was Vice President, General Counsel and Corporate Secretary at WHX Corporation, a diversified manufacturing company engaged in electronic and engineered materials, specialty fasteners and tubing, since February 2006, and prior to that was Senior Vice President, General Counsel and Corporate Secretary at The Robert Allen Group, Inc., a designer and distributor of decorative fabrics and furnishings to the interior design trade, furniture manufacturers, and the contract and hospitality markets from January 2004 to February 2006. Previously, Ellen served as Vice President, General Counsel and Corporate Secretary of Metallurg, Inc., an international producer and supplier of specialty metals, metallic chemicals and metal alloys from January 1999 to June 2002. She held a number of positions with Sequa Corporation from 1988 through 1998, including Senior Associate General Counsel and Corporate Secretary.

Larry Dubois joined the Company in September 2007 as Senior Vice-President and Chief Technology Officer, responsible for executing ATMI's current technology strategy and for developing its future technological direction. Prior to ATMI Larry was Corporate Vice-President and Head of the Physical Sciences Division at SRI International, Menlo Park, California, where he and his team focused on the development and commercialization of numerous technologies, including advanced materials and coatings, environmentally-benign processing, breakthrough energy sources, and micro- and nano-fabrication. Prior to joining SRI, Larry worked at the Defense Advanced Research Projects Agency in Arlington, Virginia, as Director of the Defense Sciences Office. Previously he was a Distinguished Member of the Technical Staff and Technical Manager at AT&T Bell Laboratories.

Tim was appointed ATMI's Chief Financial Officer in September 2007, and is responsible for planning ATMI's financing strategies, and managing ATMI's overall financial health. Before becoming CFO, Tim was most recently Senior Vice-President and General Manager, Packaging for ATMI. Prior to working with the Packaging business, Tim was leading ATMI's business development activities. Tim previously managed ATMI's worldwide finance organization as Vice-President and Corporate Controller, where his responsibilities included overseeing financial reporting, financial planning and analysis, investment and cash management, and internal audit. Before joining ATMI in 2000, Tim was with Campbell Soup Company from 1991 to 2000, where he was most recently a Finance Director for Campbell Australia and for Pepperidge Farm. He also held strategic planning, mergers and acquisitions, and internal audit positions. From 1988 to 1991, Tim was with Ernst & Young. He earned a B.S. in Economics, with concentrations in finance and accounting, from the Wharton School of the University of Pennsylvania, and is a Certified Public Accountant.

Since the fall of 2007, Tod Higinbotham has served ATMI as Executive Vice President of Process Solutions. He is responsible for the strategy, development and introduction of new product and service solutions for the semiconductor, display and life science industries. Prior to this role, Mr. Higinbotham served ATMI as Senior Vice President, General Manager of Materials for three years. Mr. Higinbotham first joined ATMI in 1999 as Vice President of Sales and Marketing for the Epitaxial Services division. In February of 2001, when the Material Lifecycle Solutions division was formed, he served as Vice President of Sales and Service. In 2003, he added Vice President of Marketing duties. Before joining ATMI, Mr. Higinbotham served as Director of Sales and Marketing for Advanced Silicon Materials, Inc., the specialty electronic materials business unit of Komatsu, Ltd . Mr. Higinbotham has also served as a consultant and led business system reengineering projects for several high tech companies. Mr. Higinbotham earned his Bachelor of Science in Finance from Portland State University and holds a Masters of Business Administration degree from the University of Washington.

Paul assumed global responsibility for all of ATMI's supply chain and operations, both internal and through alliance partners, in September 2007. He joined ATMI in 2005, as Vice-President of Supply Chain and Operations for the Materials business. Prior to joining ATMI in late 2005, Paul held senior operating roles in the semiconductor space, including time with Applied Materials and Pemstar. He began his career in the United States Navy as a flight engineer, and during his 21 year naval career served as both a materials and quality control officer. He joined Applied Materials in 1989 as Manufacturing Director and served in various operations leadership roles including Senior Director, Etch Manufacturing Operations; Managing Director, Central Materials, and Vice President, Global Materials and Supply Chain Management. During his career at Applied Materials Paul led critical initiatives which drove improvements in cycle-time, on-time delivery, gross margins, global sourcing, supplier partnerships, and quality. Paul has a BSBA from Chapman University and a CERT in Operations Management from Stanford University.

Steve is responsible for all of ATMI's customer-facing activities and its global sales and service organization. He joined ATMI in 2007 as Director of Marketing for the Materials business. He comes to ATMI after a distinguished career at NALCO where he led the activities to educate customers and execute NALCO's highly respected value-based selling model in various industries worldwide.

Tom joined ATMI in 2000 as Vice-President of Human Resources and Organizational Development. His leadership is helping to develop strategy, and current and future ATMI leaders. Tom's guidance helped to develop "ATMI University" to offer ATMI- and industry-specific training to employees. Before joining ATMI, Tom was Vice-President of Human Resources with Anthem Blue Cross and USCO Logistics.

Kathy Mincieli was appointed Vice President of Human Resources in November 2008, and is responsible for developing and implementing global human resource strategies and providing leadership for all human resource functions at ATMI including organization, policies, recruiting, planning, communication, compensation, benefits, Human Resource Information Systems, and leadership development. Ms. Mincieli joined ATMI in January, 2002 as Human Resources Manager for recruiting and performance management. In that role, she directed the centralization of both functions globally, placing the company on one consistent process and platform. She most recently served as Senior Director of Human Resources, leading Human Resource activities globally for the company's Sales and Marketing functions. From 1998 until joining ATMI, Ms. Mincieli was Director of Human Resources for the North American Lead Logistics division of Kuehne and Nagel, a multi-national company based in Switzerland. Ms. Mincieli worked for the eight years prior for Lord & Taylor stores, a division of May Department Stores, serving as Director, Human Resources from 1994 - 1998. Ms. Mincieli received her Bachelors degree in psychology from St. John's University

Gene Banucci has led ATMI, Inc. (Nasdaq: ATMI) as Chairman and CEO since co-founding the Company in 1986. He, along with the founding team of scientists, had a vision of creating a preeminent semiconductor materials company. The company went public in 1993 with only $7 million in revenues, and grew to $300 million in 2000 due to an aggressive technology development and M&A strategy. As a result of the technology downturn of 2001-2002, Gene initiated a major strategic realignment of the Company that led to the divestment of over one-third of the Company's product lines while simultaneously growing the Company's core business over 40%. At the end of 2004, Gene decided to make strategy, investor relations and governance his primary activities and moved to an executive Chairman role with the Company. Prior to starting ATMI, Gene served as Vice President for American Cyanamid's Chemical Research Division, where he directed more than 600 scientists and engineers in new product research and development for this $1.4 billion unit. Previously, he was with General Electric Company for over 10 years in a variety of management positions at the Corporate R&D Center and GE Plastics. Gene's excellent communication skills, especially his unique ability to build solid, long-lasting relationships with semiconductor industry executives, have been a prime reason for the long term growth of ATMI. Gene has broad experience in investor relations, strategy development, and corporate governance best practices. Most importantly, his personal integrity leads to a high degree of credibility and trust among customers, shareholders and employees. Gene is a founding member of the Connecticut Technology Council, a member of the Board of the Program on Innovation and Technology of the National Research Council, a member of the Board of Directors of Zygo, Inc. (Nasdaq:ZIGO), Emosyn International, and a member of the Board of Trustees of Beloit College. He received his PhD in Organic Chemistry from Wayne State University, and his BA in Chemistry from Beloit College. Gene holds 21 issued U.S. patents and is the author of numerous published articles.

Pat has inspected over 300 ships since joining ATMI in 2000. A 1986 graduate of Maine Maritime, he has sailed up to Master on US Flag tankers. Pat came ashore with BP as Port Captain in New Orleans in 1995. He was responsible for marine ovsersight at the BP refinery in Alliance, LA. He went to Anchorage, Alaska as Marine Advisor. In that position he was responsible for the safe marine operations for BP movements of crude oil from Valdez, Alaska. Pat worked closely with government agencies, ctiizens groups and industry in managing pollution response for Prince William Sound. He was responsible for the safe recycling of 4 large crude oil tankers. The project received one of BP's coveted Helios Awards for environmental excellence. Pat joined ATMI in 2000 as a senior surveyor and was made a partner in 2001.

Mark Adley has served as a director of the company since 1991. Since March 2002, Mr. Adley has been a Managing Director of Mergers & Acquisitions at Banc of America Securities LLC, a global investment banking firm. From 1996 to 2001, Mr. Adley was a Managing Director at Credit Suisse First Boston Corporation, an investment banking firm.

Mr. Marsh was most recently Vice President Business Integration & U.S. Institutional Investor Relations of ASML US, Inc., a supplier of photolithography equipment to the semiconductor industry, a position he held from 2000 until his retirement in April 2004. From 1991 to 2000, Mr. Marsh held a variety of executive management positions with ASML. Mr. Marsh serves on the Board of Directors of ATMI, Inc.

Chairman and Chief Executive Officer, Global Smarts, Inc. Dr. Shavers has been a director of our company since September 2002. She is Chairman of the Technology Committee and a member of the Board Nominating and Governance Committee. Dr. Shavers has been the Chairman and Chief Executive Officer of Global Smarts, Inc. (business advisory services) since February 2001. She also serves as a director of ATMI, Inc. (semiconductor materials and packaging) and serves on the Advisory Board for E.W. Scripps Company (media). She served as Under Secretary of Commerce for Technology for the United States Department of Commerce from November 1999 to February 2001 after having served as its Under Secretary Designate from April 1999 to November 1999. She served as Sector Manager, Microprocessor Products Group for Intel Corporation (chip maker) prior to April 1999. She served as non-executive chairman of BitArts Ltd. (software development) from 2001 to December 2003.