Disclosure of Shareholdings / Offenlegungsmeldung

Offenlegungen von Beteiligungen gemäss Börsengesetz // Disclosure of Equity
Participations Pursuant to the Swiss Stock Exchange Act

Bad Ragaz, Schweiz, 4. Februar 2013 - INFICON Holding AG (SIX Swiss Exchange
IFCN), ein führender Hersteller von Vakuuminstrumenten und
Prozesskontrollsoftware für die Halbleiterindustrie und verwandte Branchen
sowie für weitere Industrieanwendungen, gibt bekannt, dass gemäss einer am 1.
Februar 2013 erhaltenen Mitteilung der BlackRock Inc., 40 East 52nd Street,
New York NY 10022, USA, diese Gesellschaft seit einem Kauf am 29.01.2013
insgesamt 3.09% der Stimmrechte in INFICON Holding AG hält.

Die Stimmrechte werden indirekt über BlackRock Delaware Holdings Inc., 400
Howard Street, San Francisco, CA 94105 USA, BlackRock Financial Management
Inc., 40 East 52nd Street, New York NY 10055 USA, BlackRock Group Limited, 12
Throgmorton Avenue, London, EC2N 2DL UK, BlackRock Advisors Holding Inc., 40
East 52nd Street, New York, NY 10055 USA, BlackRock Holdco 2 Inc., BlackRock
Holdco 4 LLC und BlackRock Holdco 6 LLC, alle 1209 Orange Street, Wilmington,
DE 19801 USA, BlackRock International Holdings Inc., 40 East 52nd Street, New
York, NY 10055, USA, BR Jersey International Holdings L.P., One Waverly Place,
4th Floor. St. Helier, JE1 0BR, Jersey, und BlackRock Luxembourg Holdco
S.à.r.l., 6D Route de Trèves, Senningerberg, L-2633, Luxembourg sowie direkt
über BlackRock Advisors (UK) Limited, 12 Throgmorton Avenue, London, EC2N 2DL,
UK, BlackRock Fund Advisors, 400 Howard Street, San Francisco, CA 94105, USA,
BlackRock Institutional Trust Company, National Association, 400 Howard
Street, San Francisco, CA 94105 USA, BlackRock International Limited, 12
Throgmorton Avenue, London, EC2N 2DL, UK, BlackRock Investment Management (UK)
Limited, 12 Throgmorton Avenue, London EC2N 2DL, UK und BlackRock (Luxembourg)
S.A., 6D Route de Trèves, Senningerberg, L-2633, Luxembourg gehalten.

Bad Ragaz, Switzerland, February 4, 2013 - INFICON Holding AG (SIX Swiss
Exchange: IFCN), a leading manufacturer of vacuum instrumentation and process
control software for the semiconductor and related industries and other
industrial applications, announced today that according to a notification
received on February 1, 2013 from BlackRock Inc., 40 East 52nd Street, New
York NY 10022, USA, this company holds now since a purchase on January 29,
2013 a total of 3.09% of the voting rights in INFICON Holding AG.

The voting rights are held indirectly via BlackRock Delaware Holdings Inc.,
400 Howard Street, San Francisco, CA 94105 USA, BlackRock Financial Management
Inc., 40 East 52nd Street, New York NY 10055 USA, BlackRock Group Limited, 12
Throgmorton Avenue, London, EC2N 2DL UK, BlackRock Advisors Holding Inc., 40
East 52nd Street, New York, NY 10055 USA, BlackRock Holdco 2 Inc., BlackRock
Holdco 4 LLC and BlackRock Holdco 6 LLC, all 1209 Orange Street, Wilmington,
DE 19801 USA, BlackRock International Holdings Inc., 40 East 52nd Street, New
York, NY 10055, USA, BR Jersey International Holdings L.P., One Waverly Place,
4th Floor. St. Helier, JE1 0BR, Jersey, and BlackRock Luxembourg Holdco
S.à.r.l., 6D Route de Trèves, Senningerberg, L-2633, Luxembourg as well as
directly via BlackRock Advisors (UK) Limited, 12 Throgmorton Avenue, London,
EC2N 2DL, UK, BlackRock Fund Advisors, 400 Howard Street, San Francisco, CA
94105, USA, BlackRock Institutional Trust Company, National Association, 400
Howard Street, San Francisco, CA 94105 USA, BlackRock International Limited,
12 Throgmorton Avenue, London, EC2N 2DL, UK, BlackRock Investment Management
(UK) Limited, 12 Throgmorton Avenue, London EC2N 2DL, UK and BlackRock
(Luxembourg) S.A., 6D Route de Trèves, Senningerberg, L-2633, Luxembourg.

Ihr Ansprechpartner // Corporate Contact

Matthias Tröndle

Chief Financial Officer

+423 388 3510

matthias.troendle@inficon.com

Link to the pdf file of this release in English and German

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www.tensid.ch             www.newsbox.ch  marco@tensid.ch
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