IPG Photonics to Present at Stifel Nicolaus’ 9th Annual Technology, Communications & Internet Conference

IPG Photonics Corporation (NASDAQ: IPGP) today announced that its Chief Financial Officer, Tim Mammen, will be presenting at Stifel Nicolaus’ 9th Annual Technology, Communications & Internet Conference on Friday, February 11, 2011 at 8:00 a.m. PT/11:00 a.m. ET. The conference is being held February 9 – 11 at The Fairmont Hotel San Francisco.

A live audio webcast of the presentation will be available through the "Investors” section of IPG’s website at www.ipgphotonics.com. For those unable to listen to the live webcast, an archive of the presentation will be available on the Company’s website for approximately 90 days.

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, telecommunications and medical. 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.