ASM International N.V. announces progress on redemption of its outstanding 6.5% Senior Unsecured Convertible Bonds due 2014

23 november 2012 ALMERE, The Netherlands - November 23, 2012 - ASM International N.V. (NASDAQ: ASMI and NYSE Euronext Exchange in Amsterdam: ASM) announces that after its announcement on October 8, 2012 that it would exercise its right to redeem all outstanding 6.5% senior unsecured convertible bonds (the "Bonds") on November 27, 2012 at their principal amount, together with accrued but unpaid interest, all bondholders exercised their right to convert their Bonds into ordinary shares. As a result of this conversion, outstanding common shares increased with 9,074,396 shares. 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 NYSE Euronext Amsterdam Stock Exchange (symbol ASM). For more information, visit ASMI's website at www.asm.com. Safe Harbor Statement under the U.S. Private Securities Litigation Reform Act of 1995: All matters discussed in this statement, except for any historical data, are forward-looking statements. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. These include, but are not limited to, economic conditions and trends in the semiconductor industry generally and the timing of the industry cycles specifically, currency fluctuations, financing and liquidity matters, the success of restructurings, the timing of significant orders, market acceptance of new products, competitive factors, litigation involving intellectual property, shareholder and other issues, commercial and economic disruption due to natural disasters, terrorist activity, armed conflict or political instability, epidemics and other risks indicated in the Company's filings from time to time with the U.S. Securities and Exchange Commission, including, but not limited to, the Company's reports on Form 20-F and Form 6-K. The Company assumes no obligation nor intends to update or revise any forward- looking statements to reflect future developments or circumstances. Contacts: Erik Kamerbeek +31 88100 8500 Mary Jo Dieckhaus +1 212 986 2900 Media Contact: Ian Bickerton +31 20 6855 955 +31 625 018 512 Progress on redemption: http://hugin.info/132090/R/1660393/537684.pdf This announcement is distributed by Thomson Reuters on behalf of Thomson Reuters clients. The owner of this announcement warrants that: (i) the releases contained herein are protected by copyright and other applicable laws; and (ii) they are solely responsible for the content, accuracy and originality of the information contained therein. Source: ASM International NV via Thomson Reuters ONE [HUG#1660393]