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ATS AUTOMATION COMPLETES ACQUISITION OF ATW AUTOMATION BUSINESSES IN USA AND EUROPE

January 05, 2011 | Aquisitions
For Immediate Release

TSX: ATA

Cambridge, Ontario (January 5, 2011) – ATS Automation Tooling Systems Inc. (“ATS” or the
“Company”) today announced that the acquisition of the majority of Assembly & Test
Worldwide, Inc.’s U.S.-based and German automation and test systems businesses (collectively
“ATW”), previously announced on December 6, 2010, has been completed.

About ATS
ATS Automation provides innovative, custom designed, built and installed manufacturing
solutions to many of the world's most successful companies. Founded in 1978, ATS uses its
industry-leading knowledge and global capabilities to serve the sophisticated automation
systems' needs of multinational customers in industries such as life sciences,
computer/electronics, energy, automotive and consumer products. It also leverages its many
years of experience and skills to fulfill the specialized automation product manufacturing
requirements of customers. Through Photowatt, ATS participates in the growing solar energy
industry. ATS employs approximately 3000 people at 21 manufacturing facilities in Canada, the
United States, Europe, Southeast Asia and China. The Company's shares are traded on the
Toronto Stock Exchange under the symbol ATA. Visit the Company’s website at
www.atsautomation.com.

For more information, contact:
Maria Perrella, Chief Financial Officer
Carl Galloway, Vice-President, Treasurer
519 653-6500