Change in total number of shares in Opcon AB

With reference to chapter 4 section 9 of the Swedish law (1991:980) regulating
trading in financial instruments, Opcon hereby announces that the number of
shares in Opcon AB as of 31 January 2013 amounts to 309,972,730, an increase of
12,087,454 shares compared with last month. The increase is due to newly issued
shares in connection with Opcon’s directed rights issue.

For further information, please contact
Niklas Johansson, vice president, Investor Relations, Opcon AB, tel. +46 8-466
45 00,+46-70-592 54 53
Opcon AB, Box 15085, 104 65 Stockholm, Sweden
Tel. +46 8-466 45 00, fax+46 8-716 76 61
e-mail: info@Opcon.se
www.Opcon.se

The Opcon Group

Opcon is an energy and environmental technology Group that develops, produces
and markets systems and products for eco-friendly, efficient and resource
-effective use of energy.

Opcon has activities in Sweden, Germany and the UK. There are around 150
employees. The company’s shares are listed on Nasdaq OMX Stockholm. The Group
comprises one business area:

Renewable Energy focuses on the following areas: electricity generation based on
waste heat, bioenergy-powered heating and CHP plants, pellets plants, drying of
biomass, handling systems for biomass, sludge and natural gas, industrial
cooling, flue gas condensation, treatment of flue gases and air systems for fuel
cells.

Opcon AB (publ) is obliged to disclose the information in this press release in
accordance with the Swedish law governing the securities markets and/or trading
in financial instruments.
The information was submitted for publication at 16.00 (CET) on Thursday 31
January 2013.