2009-10-20 15:55:04 -

IPG Photonics Corporation : (NASDAQ: IPGP) today announced that in conjunction with its scheduled quarterly financial results news release, Chairman and Chief Executive Officer Dr. Valentin P. Gapontsev and Vice President and Chief Financial Officer Timothy P.V. Mammen will host the Company’s third-quarter 2009 financial results conference call on Tuesday, November 3, 2009 at 10:00 a.m. ET.

To listen to a live webcast of the call, please visit the Company’s website at www.ipgphotonics.com : .

Individuals may also listen to the call via telephone by dialing (877) 407-5790 or (201) 689-8328. Interested parties unable to participate in the live call may access an archived version of the webcast for one year in the “ Investors :

” section of IPG’s website.


About IPG Photonics Corporation

IPG Photonics Corporation : is the world leader in high-power fiber lasers and amplifiers. Founded in 1990, IPG pioneered the development and commercialization of optical fiber-based lasers for use in a wide range of applications such as materials processing : , advanced applications : , telecommunications : and medical : applications. Fiber lasers have revolutionized the industry by delivering superior performance, reliability and usability at a lower total cost of ownership compared with conventional lasers, allowing end users to increase productivity and decrease operating costs. IPG has its headquarters in Oxford, Massachusetts, and has additional plants and offices throughout the world. For more information, please visit www.ipgphotonics.com : .


Sharon Merrill Associates, Inc.David Calusdian, 617-542-5300Executive
Vice President