ALMERE, the Netherlands -January 3, 2011 - ASM International N.V. (Nasdaq: ASMI and Euronext Exchange in Amsterdam: ASM) announced today that it has initiated a full redemption for all of the outstanding principal balance of its 4.25% Convertible Subordinated Notes due 2011. The Notes will be redeemed on February 16, 2011, at a redemption price of 100.00% of the principal amount thereof, which is $44,909,000, plus accrued and unpaid interest to February 15, 2011. The Notice of Redemption for the Notes has been sent to all registered holders on January 3, 2011.

This press release shall not constitute a notice of redemption of the Notes.

About ASM International
ASM International N.V., headquartered in Almere, the Netherlands, and its subsidiaries design and manufacture equipment and materials used to produce semiconductor devices. ASM International and its subsidiaries provide production solutions for wafer processing (Front-end segment) as well as assembly and packaging (Back-end segment) through facilities in the United States, Europe, Japan and Asia. ASM International's common stock trades on NASDAQ (symbol ASMI) and the Euronext Amsterdam Stock Exchange (symbol ASM). For more information, visit ASMI's website at www.asm.com