Exhibit 10.1 EMPLOYMENT AGREEMENT September 19, 2005 Eugene G. Banucci, Ph.D. 20 Shore Rd. Danbury, CT 06810 Dear Gene: ATMI, Inc., a Delaware corporation (the "Company"), wishes to obtain and you wish to provide your services as an employee of the...Employment Agreement • September 20th, 2005 • Atmi Inc • Industrial inorganic chemicals • Connecticut
