Vacon - Company Announcement

American Superconductor Corporation and The Switch agree on extension of completion of sale

Vacon Plc, Stock Exchange Release, 7 October 2011 at 13.00 am (EET)

American Superconductor Corporation and The Switch agree on extension of
completion of sale

American Superconductor Corporation and The Switch Engineering Oy shareholders
have agreed to extend the completion date of the agreement to 31 October 2011,
with the option for an additional 30-day extension through to 30 November 2011
in order to American Superconductor Corporation time to secure the necessary
financing for the completion of the transaction. The sale of the Switch
Engineering Oy shares is expected to raise Vacon Plc's earnings per share by
roughly about EUR 1.4 in 2011 once the transaction is completed.

Vacon owns directly 14% of the shares of The Switch Engineering and has a
further 5% holding in The Switch Engineering through the investment fund Power
Fund I.

Vacon Plc

Further information:

  * Vesa Laisi, President and CEO, Vacon Plc, tel. +358 40 8371 510, email
    vesa.laisi(at)vacon.com
  * Sebastian Linko, Director, Corporate Communications and Investor Relations,
    Vacon Plc, tel. +358 40 8371 634, email sebastian.linko(at)vacon.com

Vacon in brief:

Vacon is driven by a passion to design, manufacture and sell only the best AC
drives on the planet - and nothing else. AC drives can be used to control
electric motors or to help generate power from renewable sources. Vacon has R&D
and production units in Finland, the United States, China and Italy, and sales
offices in 27 countries. In 2010, Vacon had revenues of EUR 338 million and
globally employed 1,300 people. Vacon's shares (VAC1V) are listed and publicly
traded on the Helsinki Stock Exchange.

Driven by Drives, www.vacon.com

Distribution:

NASDAQ OMX Helsinki
Financial Supervisory Authority
Main Media

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