Marburg, May 19, 2011 – 3U HOLDING AG (ISIN DE0005167902) sold its Subsidiary LambdaNet Communications AG, Germany including the Austrian and Czech subsidiaries to euNetworks GmbH, a subsidiary of euNetworks Group Limited. The contract was signed today. The transaction is expected to be completed in the first half of 2011.

The purchase price is in the range of the book value of the sold shares. In addition, euNetworks assumes the liabilities of LambdaNet towards 3U HOLDING AG. In total 3U HOLDING AG receives liquid funds of approximately EUR 27 million in this transaction. The liabilities assumed by euNetworks amount to EUR 7.8 million. The closing of the transaction is scheduled for May 31, 2011.

LambdaNet accounted for sales of EUR 36.78 million and EBITDA in the amount of EUR 9.67 million in the fiscal year 2010. For fiscal year 2011 sales of EUR 37.07 million and EBITDA of EUR 10.14 million are planned.

The sale of LambdaNet does not mean that 3U HOLDING AG renounces its strategic goal, to offer as many services for the infrastructure of buildings – such as energy supply from renewable energy, broadband and telecommunications services – in the future. Instead, LambdaNet has won a strong partner in euNetworks and will rely on their expanded product and service portfolio as well. Consequently, LambdaNet’s customers are also among the profiteers of this transaction.

The Management Board will give an updated outlook for the current fiscal year on May 26, 2011, the date of the next Annual General Meeting.

About LambdaNet Communications Deutschland AG

LambdaNet Communications Deutschland AG is a premier provider of telecommunication and internet services. Founded in 1999 and headquartered in Hanover, Germany, LambdaNet was bought by 3U in April 2004. Well-known customers, namely network operators, internet service providers, industrial corporations, banks and insurances, service providers and retailers rely on LambdaNet’s services. LambdaNet operates one of the most sophisticated fibre-optic and IP/MPLS networks in Europe, covering more than 40 cities in 11 countries, including metropolitan networks to 5 major European business centres. LambdaNet provides global VPN solutions based on a network of cooperation partners. The company’s service portfolio includes state-of-the-art IP/MPLS data services, high-availability internet services, integrated voice services, bandwidth transmission services up to 10 Gigabit per second as well as hosting services based on LambdaNet’s 25 data centres. LambdaNet’s information security management system is certified according to ISO 27001 since 2007.

About euNetworks Group Limited

euNetworks Group Limited (SGX: H23:SI) is a bandwidth infrastructure provider, owning and operating 13 fibre based metropolitan networks across Europe connected with a high capacity intercity backbone. The Company offers a portfolio of metro and longhaul Ethernet and Internet Protocol services including dark fibre, dedicated fibre, wavelength, Ethernet, and Internet. Enterprise and carrier customers benefit from euNetworks’ unique inventory of fibre and duct based assets that are tailored to fulfil their high bandwidth needs.

euNetworks Group Limited is headquartered in London and publicly listed on the Singapore Stock Exchange.

Contact:

Peter Alex

Head of Investor Relations

3U HOLDING AG

Frauenbergstraße 31–33

35039 Marburg

Tel.: +49 6421 999-1200

Fax: +49 6421 999-1222

E-Mail: ir@3u.net

Marburg, 21 March 2011 – 3U SOLAR Systemhandel AG, a Subsidiary of 3U HOLDING AG (ISIN DE0005167902), has signed a framework contract for the purchase of photovoltaic (PV) modules with Canadian Solar Inc, one of the world’s largest and most renowned solar module producers. This framework contract includes the procurement volume for PV modules with a capacity of 25 megawatts peak (MWp), with a value of up to EUR 30.0 million for the year 2011. 3U SOLAR benefits in this transaction from the financial strength of 3U HOLDING AG, which guarantees the financing.

Parallel, a framework contract to purchase PV modules was signed with a trading and project company from Berlin. This provides for the sale of PV modules with a value of up to EUR 18.5 million in the year 2011.

Based on these contracts, 3U HOLDING AG increases its sales forecast for the segment of renewable energies in 2011 from lastly communicated approximately EUR 10.0 million to more than EUR 30.0 million and expects to reach break even in this segment already in the current year.

The Annual Report 2010 of 3U HOLDING AG with audited financial results and an updated outlook for the current fiscal year is published on March 31, 2011.

Contact:

Peter Alex

Investor Relations

3U HOLDING AG

Frauenbergstraße 31–33

35039 Marburg

Tel.: +49 6421 999-1200

Fax: +49 6421 999-1222

Email: ir@3u.net

Marburg, January 24, 2011 – On January 21, 2011, 3U HOLDING AG (ISIN DE0005167902) has completed the share buy-back program, which was launched on July 19, 2010.

By January 21, 2011, a total of 3,117,500 shares with a proportionate amount of the share capital of EUR 3,117,500.00 had been repurchased at an average price of EUR 0.7338 for a total consideration of EUR 2,287,716.80. In addition, 3U HOLDING AG possesses 1,242,240 own shares which it had received within the scope of a settlement with former managers of the OneTel Telecommunication GmbH.

In sum, 3U HOLDING AG possesses 4,359,740 (in words: four millions three hundred fifty-nine thousand seven hundred forty) shares with a proportionate amount of the share capital of 4,359,740.00 EUR. With it, the resolution passed by the general meeting from August 28, 2009, which authorized the share buy-back of 10% of the share capital (currently 43,597,526.00 EUR), has been executed.

A decision on the use of the acquired shares has not been made yet. The resolution passed by the general meeting from August 28, 2009 intends expressly also redemption of the acquired shares.

Contact:
Peter Alex

Head of Investor Relations
3U HOLDING AG

Frauenbergstraße 31–33
35039 Marburg

Tel.: +49 6421 999-1200
Fax: +49 6421 999-1222
E-Mail: ir@3u.net