3Q18 Results Fibria registers record-high Adjusted EBITDA, EBITDA/t, EBITDA margin and LTM FCF Leverage ratio down to lowest level since the inception of the Company, at 1.18 in USD 2Q18 3Q17 (LTM) Pulp Production 000 t 1,809 1,600 1,449 13% 25% 4,997 3,983 25% 6,656 Adjusted EBITDA(1) 31% 160% 156% R$ million 3,269 2,499 1,256 7,592 2,971 9,574 Net Financial Result(3) - - - R$ million (828) (2,239) 456 (3,338) (2) (4,118) - -50% -34% Dividends paid R$ million 0 260 0 260 395 260 ROIC % 20.0% 15.3% 6.3% 4 p.p. 14 p.p. 20.0% 6.3% 2 p.p. 20.0% Gross Debt (R$) R$ million 21,351 21,023 19,051 2% 12% 21,351 19,051 12% 21,351 Net Debt (R$) R$ million 12,721 13,804 12,238 -8% 4% 12,721 12,238 4% 12,721 Net Debt/EBITDA LTM x 1.33 1.83 3.24 -0.50 x -1.91 x 1.33 3.24 -0.59 x 1.33 (1) Adjusted by non-recurring and non-cash items. | (2) Calculation excludes pulp sales f rom agreement w ith Klabin. (3) Includes interest expenses, revenues f rom f inancial investments, mark-to-market of hedging instruments, monetary and exchange variation and others. | (4) Bef ore dividend payment, expansion and logistics capex, and land acquisition. (5) Includes the hedge f air value. | (6) For covenants purposes. 3Q18 Highlights Pulp production of 1,809 thousand tons, up 13% and 25% compared to 2Q18 and 3Q17, respectively. In the last 12 months, pulp production reached 6,656 thousand tons. Pulp sales, including the pulp supplied by Klabin, came to 1,988 thousand tons, 12% and 35% higher than in 2Q18 and 3Q17, respectively. Sales in the last 12 months amounted to 7,244 thousand tons. Record-high net revenue of R$5,836 million (2Q18: R$ 4,722 million | 3Q17: R$ 2,844 million). Average net sales price in the export market stood at US$749/t (R$ 2,962/t). In the last 12 months, net revenue was a record R$18,298 million. Cash cost stood at R$584/t, down 13% and 4% from 2Q18 and 3Q17, respectively (see page 7 for more details). Cash cost was 2% lower than the ex-downtimes and ex-truckers strike cost in 2Q18. Adjusted EBITDA set a new record of R$3,269 million, advancing 31% and 160% from 2Q18 and 3Q17, respectively. Adjusted EBITDA in the last 12 months came to R$9,574 million, with margin of 59%. Record EBITDA margin of 63% in 3Q18, excluding pulp sales from the agreement with Klabin. EBITDA/ton, excluding the volumes supplied by Klabin, set a new record of R$1,858/t (US$470/t), advancing 18% and 96% on 2Q18 and 3Q17, respectively. Free cash flow before expansion capex, pulp logistics, land acquisitions and dividends was R$1,540 million. In the last 12 months, FCF was a record R$3,960 million. Free cash flow yield stood at 9.5% in BRL and 10.8% in USD. Net income (loss) amounted to R$1,130 million (2Q18: R$(210) million | 3Q17: R$743 million). Net income in the first nine months of the year came to R$1,535 million. Gross debt in USD of US$5,332 million, down 2% and 11% from 2Q18 and 3Q17, respectively. Cash position of R$8,630 million or US$2,155 million, including the mark-to-market adjustment of derivative instruments. Net debt in USD of US$3,177 million, down 11% and 18% from 2Q18 and 3Q17, respectively. The ratio of Net Debt to EBITDA in USD was 1.18x (2Q18: 1.58x | 3Q17: 3.28x) and in BRL was 1.33x (2Q18: 1.83x | 3Q17: 3.28x). Total debt cost in USD, considering the full swap curve of liabilities in BRL, was 3.9% p.a. (2Q18: 4.3% p.a. | 3Q17: 3.5% p.a.), while the average debt maturity was 55 months (2Q18: 57 months | 3Q17: 54 months). Fibria was selected as a component of the portfolio for 2018-19 of the sustainability index DJSI Emerging Markets on the NYSE. Events after the reporting period Fibria got the approval of the waiver of the right to declare the early maturity of its Certificates of Agribusiness Receivables (CRAs), whose outstanding amount totals R$3.3 billion. FIBR3: R$75.52 Total common shares (ON): 553,934,646 The operating and financial information of Fibria Celulose S.A. for the third quarter of 2018 (3Q18) presented in this document is based on consolidated figures expressed in Brazilian real and was prepared in accordance with Brazilian Corporation Law. The results of Veracel Celulose S.A. were included in this document based on 50% proportional consolidation, with the elimination of all intercompany transactions. 2 Market Cap (Sept. 28, 2018): R$41.8 billion | US$18.9 billion(1) FBR: US$18.53 (1) Market cap in R$ translated at PTAX rate Investor Relations Guilherme Cavalcanti Camila Nogueira Roberto Costa Camila Prieto Raimundo Guimarães ir@fibria.com.br | +55 (11) 2138-4565 Conference Call: Oct. 24, 2018 English (simultaneous translation into Portuguese): 12 p.m. (Brasília) Dial-in from Brazil: +55 11 3193-1001 Other participants: +1-646-828-8246 Webcast: www.fibria.com.br/ir Net Debt/EBITDA LTM (US$)(6) x 1.18 1.58 3.28 -0.40 x -2.10 x 1.18 3.28 -0.64 x 1.18 Net Debt (US$) US$ million 3,177 3,580 3,863 -11% -18% 3,177 3,863 -18% 3,177 Cash(5) R$ million 8,630 7,219 6,813 20% 27% 8,630 6,813 27% 8,630 Gross Debt (US$) US$ million 5,332 5,452 6,013 -2% -11% 5,332 6,013 -11% 5,332 ROE % 39.4% 29.3% 7.5% 10 p.p. 32 p.p. 39.4% 7.5% 4 p.p. 39.4% Net Income R$ million 1,130 (210) 743 - 52% 1,535 813 89% 1,815 Free Cash Flow (4) R$ million 1,540 1,685 549 - 180% 3,169 1,234 157% 3,960 EBITDA margin pro-forma(2) % 63% 58% 49% 5 p.p. 14 p.p. 60% 44% 16 p.p. 59% Pulp Sales 000 t 1,988 1,768 1,475 12% 35% 5,347 4,316 24% 7,244 Net Revenue s R$ million 5,836 4,722 2,844 24% 105% 14,252 7,693 85% 18,298 Key Figures Unit 3Q18 2Q18 3Q17 3Q18 vs 3Q18 vs 9M18 9M17 9M 18 vs 9M 17 Last 12 months