Align Technology Streamlines Manufacturing Process Santa Clara, Calif. – June 28, 2001 -- Align Technology, Inc. (Nasdaq: ALGN), manufacturers of the Invisalign^® System, a proprietary method of straightening teeth without unsightly wires and brackets, today announced that it has achieved increased manufacturing efficiencies and further accelerated product delivery cycle times to approximately four weeks.

Recent upgrades in Align Technology’s proprietary software provide for more efficient processing of data at the company’s Pakistan facilities. In addition, the company will see significant annual cost savings as a result of improvements in line manufacturing and a material reduction in labor-intensive operations. The increased efficiencies also allow Align Technology to reduce the size of its total number of employees by approximately six percent.

“We believe these changes and the rapid advance in the software technology that underlies our manufacturing process will enable us to reach gross margin profitability earlier than we had previously anticipated,” said Zia Chishti, CEO of Align Technology.

About Align Technology

Align Technology designs, manufactures and markets the Invisalign System, a proprietary new method for treating malocclusion, or the misalignment of teeth. The Invisalign System corrects malocclusion using a series of clear, nearly invisible, removable appliances that gently move teeth to a desired final position. Because it does not rely on the use of metal or ceramic brackets and wires, the Invisalign System significantly reduces the aesthetic and other limitations associated with braces. Invisalign is appropriate for treating adults and older teens. Align Technology was founded in March 1997 and received FDA clearance to market the Invisalign System in 1998.

This release may contain forward-looking statements based on Align Technology’s current expectations. Forward-looking statements in this release include, without limitation, references to cost-savings in manufacturing, the impact of our proprietary technology on our long- term position and achieving profitability. These forward-looking statements involve risks and uncertainties. A number of important factors could cause actual results to differ materially from those in the forward-looking statements. These factors include Align Technology’s ability to achieve profitability, the adoption by orthodontists and consumers of the Invisalign System, Align Technology’s successful enforcement of its intellectual property and avoidance of infringement on third party patents, Align Technology’s ability to establish and maintain reliable, high-volume manufacturing capacity in the U.S. and internationally, Align Technology’s ability to manage its significant growth and retain its key personnel, and Align Technology’s ability to achieve cost-savings in manufacturing and to increase manufacturing efficiencies. These factors, as well as other factors that could cause actual results to differ materially, are discussed in more detail in Align Technology’s registration statement on Form S-1, as well as other reports and documents filed from time to time with the Securities and Exchange Commission.