July 25, 2007

As of Aug. 1, Phonak Holding AG will be renamed to Sonova Holding AG

The Sonova share (formerly Phonak Holding AG) is traded at the SWX Swiss Exchange as of August 2, (on August 1, the SWX is closed due to the Swiss national holiday). The new ticker symbol is SOON (formerly PHBN). The security number remains unchanged (Val. No.: 1254978).

Find comprehensive information on the latest developments at Sonova as of Aug. 1 at www.sonova.com.

Source: Phonak