Form 6-K Fibria Celulose S.A. For: Jul 22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

Dated July 22, 2015

Commission File Number: 1-15018

Fibria Celulose S.A.

Fidêncio Ramos, 302 – 3rd and (part of) 4th floors

Edifício Vila Olímpia, Torre B, Bairro Vila Olímpia

04551-010, São Paulo, SP, Brazil

(Address of principal executive offices)

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)

Form 20-F: x             Form 40-F: o

(Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1)):

Yes: o             No: x

(Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7)):

Yes: o             No: x

(Indicate by check mark whether the registrant by furnishing the information contained in this Form, the Registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.)

Yes: o            No: x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):

Fibria Celulose S.A.

Unaudited Consolidated Interim Financial

Information at June 30, 2015

and Report on Review of Interim

Financial Information

REPORT ON REVIEW OF INTERIM FINANCIAL INFORMATION

To the Board of Directors and Shareholders

Fibria Celulose S.A

São Paulo – SP

Introduction

We have reviewed the accompanying consolidated interim accounting information of Fibria Celulose S.A., for the quarter ended June 30, 2015, comprising the balance sheet at that date the statements of income and comprehensive income for the quarter and six-month periods then ended, the statements of changes in equity and cash flows for the six-month period then ended, and a summary of significant accounting policies and other explanatory information.

Management is responsible for the preparation of the consolidated interim accounting information in accordance with the Deliberation CVM 673/11 (which approved accounting standard CPC 21(R1) - Interim Financial Reporting), and International Accounting Standard (IAS) 34 - Interim Financial Reporting issued by the International Accounting Standards Board (IASB).   Our responsibility is to express a conclusion on this interim accounting information based on our review.

Scope of the review

We conducted our review in accordance with Brazilian and International Standards on Reviews of Interim Financial Information (NBC TR 2410 — Review of Interim Financial Information Performed by the Independent Auditor of the Entity and ISRE 2410 — Review of Interim Financial Information Performed by the Independent Auditor of the Entity, respectively).   A review of interim information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures.   A review is substantially less in scope than an audit conducted in accordance with Brazilian and International Standards on Auditing and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit.   Accordingly, we do not express an audit opinion.

Conclusion on the consolidated interim information

Based on our review, nothing has come to our attention that causes us to believe that the accompanying consolidated interim accounting information referred to above has not been prepared, in all material respects, in accordance with Deliberation CVM 673/11 and IAS 34.

São Paulo, July 21, 2015.

Eduardo Affonso de Vasconcelos

Accountant – CRC-1SP166001/O-3

Baker Tilly Brasil Auditores Independentes S/S

CRC-2SP016754/O-1

2

Fibria Celulose S.A.

Unaudited consolidated balance sheet at

In thousands of Reais

3

The accompanying notes are an integral part of these unaudited consolidated interim financial information.

4

Fibria Celulose S.A.

Unaudited consolidated statement of profit or loss

In thousands of Reais, except for the income per shares

The accompanying notes are an integral part of these unaudited consolidated interim financial information.

5

Fibria Celulose S.A.

Unaudited consolidated statement of comprehensive income

In thousands of Reais, except for the income per shares

The accompanying notes are an integral part of these unaudited consolidated interim financial information.

6

Fibria Celulose S.A.

Unaudited statement of changes in shareholders’ equity

In thousands of Reais, unless otherwise indicated

The accompanying notes are an integral part of these unaudited consolidated interim financial information.

7

Fibria Celulose S.A.

Unaudited consolidated statement of cash flows

In thousands of Reais

8

Fibria Celulose S.A.

Unaudited consolidated statement of cash flows

The accompanying notes are an integral part of these unaudited consolidated interim financial information.

9

Fibria Celulose S.A.

Notes to the unaudited consolidated interim
financial information at June 30, 2015

In thousands of Reais, unless otherwise indicated

1                                        Operations and current developments

(a)                                General information

Fibria Celulose S.A. is incorporated under the laws of the Federal Republic of Brazil, as a publicly-held company. Fibria Celulose S.A. and its subsidiaries are referred to in this consolidated interim financial information as the “Company”, “Fibria”, or “we”. We have the legal status of a share corporation, operating under Brazilian corporate law. Our headquarters and principal executive office is located in São Paulo, SP, Brazil.

We are listed on the stock exchange of São Paulo (BM&FBOVESPA) and the New York Stock Exchange (NYSE) and we are subject to the reporting requirements of the Brazilian Comissão de Valores Mobiliários (CVM) and the United States Securities and Exchange Commission (SEC).

Our activities are focused on the growth of renewable and sustainable forests and the manufacture and sale of bleached eucalyptus kraft pulp. Forests in formation are located in the States of São Paulo, Mato Grosso do Sul, Minas Gerais, Rio de Janeiro, Espírito Santo and Bahia.

We operate in a single operating segment, which is the producing and selling of short fiber pulp, with our pulp production facilities located in the cities of Aracruz (State of Espírito Santo), Três Lagoas (State of Mato Grosso do Sul), Jacareí (State of São Paulo) and Veracel (State of Bahia) (jointly- controlled entity).

The pulp produced for export is delivered to customers by sea vessels on the basis of long-term contracts with the owners of these vessels, through the ports of Santos, located in the State of São Paulo (operated under a concession from Federal Government until 2017) and Barra do Riacho, located in the State of Espírito Santo (operated by our subsidiary Portocel - Terminal Especializado Barra do Riacho S.A.).

(b)                                Non-current assets held for sale

Losango project assets

On December 28, 2012, the Company and CMPC Celulose Riograndense Ltda. (“CMPC”) signed the definitive Purchase and Sale Agreement for the sale of all of the Losango project assets, comprising approximately 100 thousand hectares of land owned by Fibria and approximately 39 thousand hectares of planted eucalyptus and leased land, all located in the State of Rio Grande do Sul, in the amount of R$ 615 million. On this date the first installment of the purchase price, amounting to R$ 470 million, was paid to us. The second installment, amounting to R$ 140 million, was deposited in an escrow account and will be released to us once additional government approvals are obtained. On November 2014, we received an additional R$ 7 million as an advance from CMPC. The final installment of R$ 5 million is payable to us upon the completion of the transfer of the existing land lease contracts for the assets, and the applicable government approvals. The sale and purchase agreement establishes a period of 48 months, renewable at the option of CMPC for an additional 48 months, to obtain the required government approvals. If this approval is ultimately not obtained, we will be required to return to CMPC the amount paid to us, plus interest and the escrow deposits made by CMPC will revert. We have recorded the amount received as a liability under “Advances received in relation to assets held for sale”.

Since the signing of the Purchase and Sale Agreement with CMPC, we have taken action to obtain the approvals needed, such as the fulfillment of all conditions precedent, the partial renewal of the operating license of the areas and obtaining the documentation to be presented to the applicable government

10

Fibria Celulose S.A.

Notes to the unaudited consolidated interim
financial information at June 30, 2015

In thousands of Reais, unless otherwise indicated

agencies. The consistent progress in obtaining these approvals indicates that favorable resolution will be achieved.

We have concluded that these assets should remain classified as assets held for sale. However, the completion of the sale is not under our sole control and it depends on various government approvals, which have been slower than expected. Accordingly we have concluded that they should continue to be classified as non-current assets held for sale as at June 30, 2015.

The Losango assets did not generate any significant impact in the unaudited consolidated statement of profit or losses for the six-month period ended June 30, 2015 and 2014.

(c)                                 Approval of the expansion plan of the Três Lagoas Unit

On May 14, 2015, the Board of Directors approved the expansion plan of the Company consisting of the construction of the second line of pulp production in the unit of Três Lagoas, state of Mato Grosso do Sul, called Horizonte 2 Project.

The Horizonte 2 Project consists in the construction of a new bleached eucalyptus pulp production line with capacity of 1.75 million tons per year and an estimated investment of R$ 7.7 billion. The startup of the new production line is projected for the fourth quarter of 2017.

The Project will be financed by the free cash flow of the Company and financing, in accordance to the limits established on the Indebtedness Management Policy.

2                                        Presentation of consolidated interim financial information and summary of significant accounting policies

2.1                              Consolidated interim financial information - basis of preparation

(a)                                Accounting policies adopted

The consolidated interim financial information has been prepared and is being presented in accordance with IAS 34 and Deliberation 673/11 issued by the Brazilian Securities and Exchange Commission (CVM), which approved the CPC 21(R1) - “Interim Financial Reporting” as issued by the International Accounting Standards Board (IASB) and the Accounting Statements Committee Standards (CPC).

The consolidated interim financial information should be read in conjunction with the audited financial statements for the year ended December 31, 2014, considering that its purpose is to provide an update on the activities, events and significant circumstances in relation to those presented in the annual financial statements.

The current accounting practices, which include the measurement principles for the recognition and valuation of the assets and liabilities, the calculation methods used in the preparation of this interim financial information and the estimates used, are the same as those used in the preparation of the most recent annual financial statements, except to the items related to the adoption of the new standards, amendments and interpretations issued by IASB and CVM, as detailed in Note 3 below.

11

Fibria Celulose S.A.

Notes to the unaudited consolidated interim
financial information at June 30, 2015

In thousands of Reais, unless otherwise indicated

(b)                                Approval of the consolidated interim financial information

The consolidated unaudited interim financial information was approved by the Board of Directors on July 21, 2015.

2.2                              Critical accounting estimates and assumptions

Estimates and assumptions are continually evaluated and are based on historical experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. Accounting estimates will seldom match the actual results. In the six-month period ended June 30, 2015, there were no significant changes in the estimates and assumptions which are likely to result in significant adjustments to the carrying amounts of assets and liabilities during the current financial year, compared to those disclosed in Note 3 to our most recent annual financial statements.

3                                        New standards, amendments and interpretations issued by IASB and CVM

The standards below have been issued and are effectives for future periods. We have not early adopted these standards.

There are no other IFRSs or IFRIC interpretations that are not yet effective that the Company expect to have a material impact on the Company’s financial position and results of operations.

12

Fibria Celulose S.A.

Notes to the unaudited consolidated interim
financial information at June 30, 2015

In thousands of Reais, unless otherwise indicated

4                                        Risk management

The risk management policies and financial risk factors disclosed in the annual financial statements (Note 4) did not show any significant changes. The Company’s financial liabilities which present liquidity risk are presented below by maturity (Note 4.1), exchange risk exposure (Note 4.2), sensitivity analysis (Note 5) and fair value estimates (Note 6), which was considered relevant by Fibria’s management to be accompanied quarterly.

4.1                              Liquidity risk

The table below presents the financial liabilities into relevant maturity groupings based on the remaining period from the balance sheet date to the contractual maturity date. The amounts disclosed in the table are the contractual undiscounted cash flows and as such they differ from the amounts presented in the consolidated balance sheet.