FIBRIA CELULOSE S.A.

Publicly-Held Company

Corporate Taxpayer ID CNPJ/MF no. 60.643.228/0001-21 Company Registry (NIRE) 35.300.022.807 | CVM Code No. 12793

MATERIAL FACT

FIBRIA CELULOSE S.A. ("Fibria" or "Company") (B3: FIBR3 | NYSE: FBR), in accordance with the article 157, paragraph 4th, of the Law n. 6.404/76, as amended ("Corporate Law"), and the article 2 of the CVM Instruction n. 358/2002, as amended ("ICVM 358/2002"), hereby informs its shareholders and the market in general the start of the operations in its new production line of bleached eucalyptus pulp, of the Project Horizon 2, located in the city of Três Lagoas, state of Mato Grosso do Sul, with wood chips been sent to the digester for the first time on this date.

The new mill, the largest single line of pulp production in the world, will add 1,95 million of tons of pulp/year into the production capacity of the Company, with an exceeding generation of energy of 130 MW. With this, the Três Lagoas unity extends its nominal production capacity to a total of 3,25 million tons of pulp/year, while the Company achieves a nominal production capacity of 7,25 million of tons of pulp/year.

With the start of the new mill, Fibria increases its leadership and structural competitiveness in the global market hardwood pulp market.

The company reinforces, through the disclosure of the information of this Material Fact, its commitment to transparency to its shareholders and investors.

São Paulo, August 23, 2017.

FIBRIA CELULOSE S.A. Guilherme Perboyre Cavalcanti

Chief Financial and Investors Relations Officer

Fibria Celulose SA published this content on 23 August 2017 and is solely responsible for the information contained herein.
Distributed by Public, unedited and unaltered, on 23 August 2017 23:07:04 UTC.