In May 2009 RaySearch Laboratories AB (publ.) entered into a long-term
development and licensing agreement with Siemens Healthcare. Under the agreement
RaySearch provided a number of treatment planning modules for integration in
Siemens’ syngo® Suite for Oncology, which is Siemens’ integrated workflow
solution for radiation therapy.

RaySearch and Siemens have now agreed to terminate the development and licensing
agreement and end the partnership.

Under the termination agreement, Siemens will pay RaySearch a onetime fee of
approximately one million Euros and provide certain IP rights to RaySearch. This
fee will be recognized in the fourth quarter of 2012 but the earnings impact
will be lower due to a write-down of the capitalized development costs for the
software that was developed specifically for Siemens and is not reusable in any
other product.

About RaySearch
RaySearch Laboratories is a medical technology company that develops advanced
software solutions for improved radiation therapy of cancer. RaySearch’s
products are mainly sold through license agreements with leading partners such
as Philips, Nucletron, IBA Dosimetry, Varian and Accuray. To date, 15 products
have been launched through partners and RaySearch’s software is used at over
2,000 clinics in more than 30 countries. In addition, RaySearch offers the
proprietary treatment planning system RayStation® directly to clinics. RaySearch
was founded in 2000 as a spin-off from Karolinska Institutet in Stockholm and
the company is listed in the Small Cap segment on NASDAQ OMX Stockholm.

For more information about RaySearch, visit www.raysearchlabs.com

For further information, please contact:
Johan Löf, President and CEO, RaySearch Laboratories AB
Telephone: +46 (0)8-545 061 30
johan.lof@raysearchlabs.com