ATI TECHNOLOGIES announces acquisition of AMI

September 2, 2003, Taipei, Taiwan - ATI Technologies Inc. (TSX: ATY, NASDAQ: ATYT) today announced it has acquired certain assets of AMI Technologies Corp., ATI's exclusive sales organization for Taiwan and China since 1992. The acquisition strengthens ATI's direct presence in these critical and rapidly growing markets. ATI's customers will benefit from better service through increased investment in application and engineering support. The arrangement is expected to reduce ATI's operating expenses.

"This is a natural progression in AMI's evolution," said Billy Wang, former CEO of AMI and now ATI's Vice President, APAC. "AMI has been ATI's exclusive representative in Taiwan and China for 11 years to the day, and this move allows us to bring our customers even closer to our product developers."

"AMI has been very successful in building our business in the Far East," said Rick Hegberg, Senior Vice President, Sales, at ATI. "We felt it was time to take it to the next level, and we are committed to making the appropriate investments in this high growth region."

ATI will assume the leases of AMI's offices in Taipei and Beijing. The Shanghai office will be moved to a new site within the city. The majority of AMI's sales, marketing, and field applications personnel will join ATI and the rest will stay employed by AMI as it continues to act as an ATI sales agent.

About ATI Technologies Inc.

ATI Technologies Inc. is a world leader in the design and manufacture of innovative 3-D graphics and digital media silicon solutions. An industry pioneer since 1985, ATI is the world's foremost visual processor unit (VPU) provider and is dedicated to delivering leading-edge performance solutions for the full range of PC and Mac desktop and notebook platforms, workstation, set-top and digital television, game console, and handheld markets. With 2002 revenues in excess of U.S. $1 billion, ATI has more than 2,000 employees in the Americas, Europe and Asia. ATI common shares trade on NASDAQ (ATYT) and the Toronto Stock Exchange (ATY).