Cochlear™ Nucleus® Reliability Report - Volume 6, Jun 2009

Cochlear’s industry leading implant reliability reflects our lifetime commitment to recipients. Since the
release of Cochlear’s first multi-channel system in 1982, there have been many improvements in cochlear
implant technology, and in recipient outcomes. Cochlear has produced several generations of Nucleus®
cochlear implants, with each successive generation of implant more reliable than the last.

Cochlear applies the lessons it learns from each generation of implant to the next generation to improve
reliability and recipient outcomes. In 2005, the Nucleus® Freedom™ cochlear implant system was
released. After five years, the Freedom or CI24RE implant reliability data continues to demonstrate
excellent reliability. After five years on the market, the Cumulative Failure Percentage (CFP) of the
Freedom implant is (per June 2009 data) 0.84% for adults and children combined.

As of June 30 2009, there were 46,047 successful surgeries conducted with the Nucleus Freedom
cochlear implant, and 127,455 successful Nucleus cochlear implant surgeries conducted in total.