ASM INTERNATIONAL REPORTS FIRST QUARTER 2009 OPERATING RESULTS

ALMERE, THE NETHERLANDS, April 28, 2009 - ASM International N.V. (NASDAQ: ASMI and Euronext Amsterdam: ASM) reports today its first quarter 2009 operating results in accordance with US GAAP.       First quarter of 2009 net sales of EUR 89.1 million, down 41% from the fourth quarter of 2008 and down 55% from the first quarter of 2008;       Net loss allocated to the shareholders of the parent of the first quarter of 2009 was EUR 23.3 million, or EUR 0.45 diluted net loss per share, as compared to net loss of EUR 6.2 million, or EUR 0.12 diluted net loss per share for the fourth quarter of 2008 and net earnings of EUR 12.6 million or EUR 0.22 diluted net earnings per share for the first quarter of 2008;       Bookings in the first quarter of 2009 were EUR 84.4 million, up 4% from the fourth quarter of 2008. Bookings from our Front-end segment were down 32% and bookings from our Back-end segment were up 65%. Quarter-end backlog was EUR 86.1 million, down 5% from the end of the previous quarter;       Front-end segment cash balance increased from EUR 78.9 million per 31 December 2008 to EUR 82.6 million per 31 March 2009.  Investor contacts: Erik Kamerbeek+ 31 88 100 8500Erik.kamerbeek@asm.com Mary Jo Dieckhaus+1 212-986-2900MaryJo.Dieckhaus@asm.com Naud van der Ven+  31 88100 8540  Media contact: Charles Huijskens+31 20 6855 955Mobile: +31 653 105072c.huijskens@huijskens.nl   To see the full report click here: PR Q1 press release