MATERIAL FACT

IDEIASNET S.A., a public company headquartered at Rua Visconde de Piraja n. 572, salão 401, parte, Ipanema, in the city and state of Rio de Janeiro, Corporate Taxpayer's Id (CNPJ) 02.365.069/0001-44 ("Company"), in compliance with the requirements of CVM Instruction 358, of January 3, 2002, announces to its shareholders and the market in general that on this date the Company's Board of Directors has approved, by unanimous vote, an increase in the Company's capital stock by means of a private subscription in the total amount of one hundred million and five hundred thousand reais (R$100,500,000.00) with the issuance of fifteen million (15,000,000) new common shares with no par value.
 
The total capital increase approved has the irreversible firm commitment for the subscription and payment in domestic currency by Centennial Asset Mining Fund LLC, a company duly incorporated and existing under the laws of Nevada, USA ("Centennial") and linked to the EBX group.  All remaining shareholders, i.e. those duly listed on the BOVESPA as of May 14,2008, will be able to exercise their preemptive rights if they elect to do so.
 
The aforementioned firm commitment depends on fulfilling the condition that at least forty-five percent (45%) of the shares to be issued as a result of the capital increase are free for subscription by Centennial. The non-fulfillment of this condition releases Centennial from the obligation of subscribing and paying for the shares issued due to said capital increase.
 
The period for exercising the preemptive rights shall be thirty (30) days as of the date of publication of the respective notice in the press.
 
Any shares left unsubscribed shall be allotted pro-rata to the shareholders who have so requested, pursuant to item "b", paragraph 7, of article 171 of Law 6,404/76, and shall be subscribed within five (5) days from the fourth (4th) business day after the end of the period for exercising the preemptive rights. In case there are still unsubscribed shares, these shall be sold on the Bovespa for the benefit of the Company. 

Rio de Janeiro, May 13, 2008. 

Rodin Spielmann de Sá
Investor Relations Officer