INTANGIBLE ASSETS

in EUR thousands Goodwill Other

intangible assets Total Cost Balance at January 1, 2011 79,118 34,171 113,289 Acquisitions 234 2,744 2,978 Disposals 14 14 Transfers 57 57

Effect of movements in exchange rates 2,109 590 2,699

Balance at December 31, 2011 81,461 37,548 119,009

Balance at January 1, 2012 81,461 37,548 119,009

Acquisitions 715 715

Disposals 0

Transfers 0

Effect of movements in exchange rates 368 -295 73

Balance at December 31, 2012 81,829 37,968 119,797 Amortization and impairment losses

Balance at January 1, 2011 16,917 27,194 44,111 Amortization charge for the year 3,540 3,526

Disposals 14 14

Effect of movements in exchange rates 466 623 1,089

Balance at December 31, 2011 17,383 31,343 48,726

Balance at January 1, 2012 17,383 31,343 48,726 Amortization charge for the year 2,720 2,720

Disposals 0

Effect of movements in exchange rates 100 -313 -213

Balance at December 31, 2012 17,483 33,750 51,233 Carrying amounts At January 1, 2011 62,201 6,977 69,178 At December 31, 2011 64,078 6,205 70,283 At January 1, 2012 64,078 6,205 70,283 At December 31, 2012 64,346 4,218 68,564

Amortization and impairment expenses for other intangible assets

Amortization and impairment expenses for other intangible assets are recognized in the income statement as follows:

in EUR thousands 2012 2011 2010

Amortisation Impairment Amortisation Impairment Amortisation Impairment

Cost of sales 202 0 1,000 0 1,296 0

Selling expenses 5 0 255 0 1,301 0

General administration expenses 1,915 0 1,670 0 1,119 0 Research and development costs 598 0 615 0 653 0

2,720 0 3,540 0 4,369 0

In 2012, 2011 and 2010 , no impairment losses were incurred and no reversals of impairment losses were made.

The amortization expected to be charged on other intangible assets in the future years is as follows:

in EUR thousands 2013 1,514 2014 1,066 2015 569 2016 403 2017 153

The actual amortization can differ from the expected amortization.

Impairment of goodwill

At the end of 2012 the Group assessed the recoverable amount of goodwill and determined that no impairment loss had to be recognized (2011: kEUR 0; 2010 kEUR 0).

The carrying value of goodwill was kEUR 64,346 (2011 kEUR 64,078; 2010 kEUR 62,201). The addition in 2011 of kEUR 234 is the final contractual payment to the former owners of Nanoinstruments Ltd and was paid in 2012.

As at the end of 2012 the cash generating unit, to which the goodwill has been allocated, is the AIXTRON Group operational segment.

The recoverable amount of the cash-generating unit is determined through a fair value less cost to sell calculation. IFRS 13, which is mandatory from January 1, 2013, and which AIXTRON has adopted during 2012 defines fair value and sets out a framework for measuring fair value. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As AIXTRON has only one cash generating unit (CGU), market capitalisation of AIXTRON, adjusted for a control premium, has been used to determine the fair value less cost to sell of the cash generating unit. This is level 2 in the hierarchy of fair value measures set out in IFRS 13.

Market capitalisation was not available at December31, 2012, but as at December 28, 2012 the market capitalisation of Aixtron was Euro 896.0 million, based on a share price of Eur 8.879 and issued shares (excluding Treasury Shares) of 100,896,098.

In an orderly selling process costs are incurred. Aixtron has used 1.5% to account for the costs to sell. A control premium of 20% has been applied to adjust the market capitalization to the fair value. Market capitalisation was also adjusted for net cash and tax assets prior to comparing it to the carrying amount of the CGU. The analysis shows that the fair value less costs to sell of the CGU Aixtron exceeds its carrying amount and that Goodwill is not impaired.

Euro millions Impaiment

Test SensitivityAnalysis Market capitalisation as of December 28, 2012 896,0 477,3

Costs to sell in percentage 1,50% 1.50%

Costs to sell -13,4 -7,2

Market capitalisation less cost to sell 882,6 470,1

Control premium in percentage 20,00% 0,00%

Control premium 179,2 0,0

Market capitalisation and control premium less cost to sell

1061,8 470,1

Tax assets -11,9 -11,9 Fair value less costs to sell of CGU 840,4 248,7

Carrying amount of the CGU 248,7 248,7

Surplus of fair value less cost to sell over carrying

amount 591,7 0,0

Surplus of fair value less cost to sell over carrying

amount as a percentage 238% 0%

The fair value less costs to sell, which is the recoverable amount, exceeds the carrying amount of the CGU by 238%.

A sensitivity analysis of the impairment test, in which the control premium is reduced to zero, shows that the carrying amount of the CGU would equal the recoverable amount should the market capitalisation of AIXTRON fall by 47% to Euro 477.3 million.

At the end of 2011, the recoverable amount of the cash generating unit was determined through a fair value less cost to sell calculation which used cash flow projections based on financial budgets and forecasts approved by the Executive Board covering the period up to 2013.

The key assumptions include

A post tax WACC of 11.94% which is derived as at December 2011 using the capital asset pricing model.

A risk free interest rate of 2.75% based on German Government bond yields. A market risk premium of 5%

An additional risk premium of 1.25% to reflect the current CAPITAL MARKET situation of historically low interest rates and high uncertainty.

An unlevered beta of 1.37. A country risk premium of 1.09%

A terminal growth rate of 0% has been assumed for the purposes of the calculation of the recoverable amount.

An exchange rate of USD 1.40 to EUR 1. A margin, before interest and tax, of 15%

Projections of net working capital based on expected working capital ratios. These ratios include; inventory turnover 2.2; receivables 46 DSO and payables 34 DPO.

The directors believe that any reasonably possible change in the key assumptions on which fair value less costs to sell is based would not cause the aggregate carrying amount to exceed the aggregate fair value less costs to sell of the cash-generating unit.