ASM INTERNATIONAL N.V. REPORTS FOURTH QUARTER 2015 RESULTS

Almere, The Netherlands
February 23, 2016

ASM International N.V. (Euronext Amsterdam: ASM) today reports its fourth quarter 2015 operating results (unaudited) in accordance with US GAAP.

FINANCIAL HIGHLIGHTS

• Net sales for the fourth quarter 2015 were €145 million, a decrease of 11% compared to the previous quarter. Year-on-year net sales increased with 16%.
   
• New orders at €135 million were 9% below the Q3 2015 level.
   
• Normalized net earnings for the fourth quarter 2015 decreased by €17 million compared to the third quarter 2015. Operating result dropped €7 million due to the lower activity level and a one off charge due to the write off of the remaining 450mm assets (€3 million). The financing result included €6 million favorable effects from currencies compared to €3 million in the third quarter. The Q3 result included €9 million in one-off tax benefits. The Q4 result included €5 million one-off benefits resulting from the recognition of tax losses, incurred in the past, in the Netherlands. The result from investments decreased with €6 million.

COMMENT

Commenting on the results, Chuck del Prado, President and Chief Executive Officer of ASM International said:
"Q4 revenues at €145 million came in at the top end of our guidance, bringing the sales for the full year to €670 million. This represents a 14% currency comparable increase in 2015, in a year in which the wafer fab equipment industry did not show any growth. Order intake, at €135 million, came in at the higher end of our guidance. Our gross profit margin remained in the 44% range, finishing the year with a 120 basis points increase over 2014. Due to our favorable result development and healthy cash situation, we will propose during the upcoming AGM to increase the dividend to €0.70 per share.

OUTLOOK

For Q1 we expect sales between €135 and €145 million. For Q2 we expect sales between €140 and €150 million. In line with our earlier views, based on current visibility, we expect 2016 to be more revenue back loaded. The Q1 order intake is expected to be in the range of €150 to €165 million (all figures on a currency comparable level).

SHARE BUYBACK PROGRAM

October 28, 2015 ASMI announced that its Management Board authorized the repurchase of up to €100 million of the Company's common shares within the 2015-2016 time frame. This buyback program will be executed by intermediaries and will end as soon as the aggregate purchase price of the common shares acquired by ASMI has reached €100 million, but ultimately on November 20, 2016.

On May 21, 2015 the General Meeting of Shareholders authorized ASMI to acquire shares for a period of 18 months. The repurchase program is part of ASMI's commitment to use excess cash for the benefit of its shareholders.

The program started on November 26, 2015. On December 31, 2015 of the program 9% was repurchased.

REPORTING 2016

Up until the most recent reporting period, ASMI's primary external and internal reporting has been based on US GAAP. In addition ASMI issues quarterly reconciliations of net earnings and shareholders' equity and (semi) annual financial statements prepared in accordance with International Financial Reporting Standards (IFRS). Following the voluntary delisting from NASDAQ, August 2015, ASMI will migrate to IFRS as its only internal and external reporting standard from January 1, 2016 and will discontinue the use of US GAAP as of the same date. During 2016 comparable results based on US GAAP will be presented, as from 2017 only results based on IFRS will be reported.

2015 ANNUAL REPORT

On April 13, 2016 ASMI will publish its Statutory Annual Report. The report will be published on our website at www.asm.com.

About ASM International

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

Cautionary Note Regarding Forward-Looking Statements: All matters discussed in this press release, 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, corporate transactions, financing and liquidity matters, the success of restructurings, the timing of significant orders, market acceptance of new products, competitive factors, litigation involving intellectual property, shareholders or 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 reports and financial statements. The Company assumes no obligation nor intends to update or revise any forward-looking statements to reflect future developments or circumstances.

ASMI hereby announces that its Home Member State is The Netherlands for purposes of the EU Transparency Directive.

ASM International will host an investor conference call and web cast on Thursday, February 24, 2016 at 15:00 Continental European Time (9:00 a.m. - US Eastern Time).

The teleconference dial-in numbers are as follows:

• United States:          +1 212 444 0481
• International:            +44 (0)20 3427 1916
• The Netherlands:     +31 (0)20 713 2790
• Access Code:          2811744

A simultaneous audio web cast will be accessible at www.asm.com.

CONTACT

Investor contact:

Victor Bareño
T: +31 88 100 8500
E: victor.bareno@asm.com

Media contact:

Ian Bickerton
T: +31 625 018 512