DIAGNÓSTICOS DA AMÉRICA S.A.

Publicly-Traded Company

NIRE 35.300.172.507

CNPJ/MF n.º 61.486.650/0001-83

MATERIAL FACT

DIAGNÓSTICOS DA AMÉRICA S.A. ("Company" or "DASA"), in addition to the material facts published during the recent days, informs that on this date a copy of the official letter sent by the Comissão de Valores Mobiliários ("CVM"), OFÍCIO/CVM/SER/GER-

1/Nº19/2014 (Attachment I - free translation) ("Official Letter") to Banco BTG Pactual S.A., as follows:

"Dear Sirs:

We make reference to the notice published on page B6 of the paper Valor Econômico, on the date hereof, disclosing that the final decision on the voluntary tender offer to acquire common shares issued by Diagnósticos da América S.A. ("DASA") would be made by the Colegiado of the CVM, as noted below:

"The Colegiado of the CVM will decide on Dasa

There is a chance that the Tender Offer for Dasa, headed by businessman Edson

Bueno, will occur on February 4.

(...)

Bueno reported, through the note, that 'measures needed toward the CVM reconsidering the decision so as to make the auction viable' would be taken. The final decision will be made by the colegiado of the CVM."

In this matter, we ask that you manifest yourselves on the decision taken by the offeror with respect to effecting the Tender Offer in question, in view of the terms of OFFICIAL LETTER/CVM/SRE/GER-1/N° 16/2014 dated January 23, 2014.

In addition, if the offeror intends to appeal the decision of the Superintendência de Registros, which disregarded the Public Notice published on January 22, 2014,

we ask that such be filed with the rationale justifying the appeal, under the terms of CVM Resolution n° 463 /03.

We also request that the entire substance of this Official Letter be made known to Cromossomo Participações II S.A., which should also manifest itself on the matters at hand, should it deem it pertinent.

Finally, we note that the period for the above-cited manifestation ends today, at

4:30 p.m., and must be filed physically with the CVM, with copy to emails ger- l@cvm.gov.br and sre@cvm.gov.br, and that the response to this official letter must make mention of its Proceeding number (RJ-2014-783). (…)"

In addition, the Company informs that received from CVM, also on this date, a copy of an official letter sent by CVM, OFÍCIO/CVM/SRE/GER-1/Nº20/2014 (Attachment II - free translation) (designated, together with OFÍCIO/CVM/SER/GER-1/Nº19/2014, "Official Letters"), addressed to Banco BTG Pactual S.A., as follows:

Dear Sirs:

We make reference to the dispatch filed here with the CVM on January 24, 2014, appealing the decision of this Superintendência de Registro de Valores Mobiliários ("SRE"), which disregarded the Public Notice of a voluntary tender offer to acquire common shares issued by Diagnósticos da América S.A. ("DASA"), published in papers with large circulation on January 22, 2014, under the terms we communicated in OFFICIAL LETTER/CVM/SRE/GER-1/N° 16/2014 dated January 22, 2014.

In this matter, we note that this appeal includes a request of tolling effect, under the terms of part V of CVM Resolution n° 463/03.

Accordingly, we give notice of the tolling of the period addressed in §1 if art. 12 of CVM Instruction n° 361/02, and that such period shall resume once the interested party becomes aware of the decision on such appeal to the CVM. (…)"

Due to the above mentioned, Banco BTG Pactual S.A. and/or Cromossomo Participações II S.A. are responsible to take any eventual action in the context of the Official Letter.

Without limiting the foregoing, DASA will keep its shareholders and the market duly informed of the evolution of the subjects mentioned by this material fact.

Barueri, 24 de janeiro de 2014.

Paulo Bokel Catta-Preta Chief Investors Relations Officers

Attachment I to the Material Fact of January 24, 2014
The content of this Attachment is not a manifestation of Diagnósticos da América S.A.

01/24/2014 10:50 35548421 GER-1 PAGE 03

CVM [letterhead] Comissão de Valores Mobiliários

Protecting those that invest in Brazil's future

OFFICIAL LETTER/CVM/SRE/GER-l/N° 19/2014
Rio de Janeiro, January 24, 2014
To:
Bruno Duque
Banco BTG Pactual S.A.
Ricardo Chamma Lutfalla
BTG Pactual CTVM S.A.
Avenida Brigadeiro Faria Lima, n° 3.477, 14° andar, São Paulo, SP
04538-133 - São Paulo - SP
Banco BTG: (11) 3383-2001 BTG CTVM: (11) 3383-2000
DASA: (11) 4197-5530
Lefosse: (11) 3024-6200 BM&FBovespa: (11) 2565-4067
Regarding: Diagnósticos da América S.A. Voluntary Tender Offer
CVM Proceeding n° RJ-2014-783
Dear Sirs:
We make reference to the notice published on page B6 of the paper Valor Econômico, on the date hereof, disclosing that the final decision on the voluntary tender offer to acquire common shares issued by Diagnósticos da América S.A. ("DASA") would be made by the Colegiado of the CVM, as noted below:

"The Colegiado of the CVM will decide on Dasa

There is a chance that the Tender Offer for Dasa, headed by businessman Edson Bueno, will occur on February 4.

(...)

Bueno reported, through the note, that 'measures needed toward the CVM reconsidering the decision so as to make the auction viable' would be taken. The final decision will be made by the colegiado of the CVM."

In this matter, we ask that you manifest yourselves on the decision taken by the offeror with respect to effecting the Tender Offer in question, in view of the terms of
In addition, if the offeror intends to appeal the decision of the Superintendência de Registros, which disregarded the Public Notice published on January 22, 2014, we ask that such be filed with the rationale justifying the appeal, under the terms of CVM Resolution n° 463 /03.
We also request that the entire substance of this Official Letter be made known to Cromossomo Participações II S.A., which should also manifest itself on the matters at hand, should it deem it pertinent.

Finally, we note that the period for the above-cited manifestation ends today, at 4:30 p.m., and must be filed physically with the CVM, with copy to emails ger- l@cvm.gov.br and sre@cvm.gov.br, and that the response to this official letter must make mention of its Proceeding number (RJ-2014-783).
Should you need additional clarification, we ask that you be in contact with Gustavo L. Unfer, at telephone (21) 3554-8500.
Respectfully,
/s/ Gustavo Luchese Unfer GUSTAVO LUCHESE UNFER Manager of Registrations 1 (acting)
Attachment II to the Material Fact of January 24, 2014
The content of this Attachment is not a manifestation of Diagnósticos da América S.A.

01/24/2014 16:19 35548421 GER-1 PAGE 05

CVM [letterhead] Comissão de Valores Mobiliários

Protecting those that invest in Brazil's future

OFFICIAL LETTER/CVM/SRE/GER-l/N° 20/2014
Rio de Janeiro, January 24, 2014
To:
Bruno Duque
Banco BTG Pactual S.A.
Ricardo Chamma Lutfalla
BTG Pactual CTVM S.A.
Avenida Brigadeiro Faria Lima, n° 3.477, 14° andar, São Paulo, SP
04538-133 - São Paulo - SP
Banco BTG: (11) 3383-2001 BTG CTVM: (11) 3383-2000
DASA: (11) 4197-5530
Lefosse: (11) 3024-6200 BM&FBovespa: (11) 2565-4067
Regarding: Diagnósticos da América S.A. Voluntary Tender Offer
CVM Proceeding n° RJ-2014-783
Dear Sirs:
We make reference to the dispatch filed here with the CVM on January 24, 2014, appealing the decision of this Superintendência de Registro de Valores Mobiliários ("SRE"), which disregarded the Public Notice of a voluntary tender offer to acquire common shares issued by Diagnósticos da América S.A. ("DASA"), published in papers with large circulation on January 22, 2014, under the terms we communicated in OFFICIAL LETTER/CVM/SRE/GER-1/N° 16/2014 dated January 22, 2014.
In this matter, we note that this appeal includes a request of tolling effect, under the terms of part V of CVM Resolution n° 463/03.
Accordingly, we give notice of the tolling of the period addressed in §1 if art. 12 of CVM Instruction n° 361/02, and that such period shall resume once the interested party becomes aware of the decision on such appeal to the CVM.
Should you need additional clarification, contact Gustavo L. Unfer, at telephone (21)
3554-8500.
Respectfully,
/s/ [illegible] REGINALDO PEREIRA DE OLIVEIRA Superintendent of Registration of Securities

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