Untitled Page

Company:	OI S.A. (OIBR)
Form Type:	F-4
Filing Date:	9/1/2011
CIK:	0001160846
Address:	RUA GENERAL POLIDORO, NO. 99 5TH FLOOR/PART - BOTAFOGO
City, State, Zip:	RIO DE JANEIRO, RJ, 22280-001
Telephone:	55-21-3131-1211
Fiscal Year:	12/31

Last Trade

Last Trade:
$1.72

Change:

-0.15 (-8.02%)

Trade Time:
Jun 19

Market Cap:
$2.06B

1 year historical chart

Description of Business

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CALCULATION OF REGISTRATION FEE

PRELIMINARY PROSPECTUS (Subject to Completion)

TABLE OF CONTENTS

Market Share and Other Information

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART ONE-QUESTIONS AND ANSWERS ABOUT THE MERGER

PART TWO-SUMMARY

Selected Historical Financial Data and Pro Forma Financial Data

Selected Historical Financial Data

Selected Historical Brasil Telecom Financial Data

Selected Historical TNL Financial Data

Ratio of Combined Fixed Charges and Preference Dividends to ...

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

PART THREE-RISK FACTORS

Cautionary Statement Concerning Forward-Looking Statements

PART THREE-RISK FACTORS

Management Changes

PART FIVE-THE MERGER

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Additional Information Relating to Itaú BBA and the Itaú BBA ...

PART FIVE-THE MERGER

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Material Tax Considerations

PART FIVE-THE MERGER

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Description of Brasil Telecom Capital Stock

Fiduciary Duties and Conflicts of Interest

Reclassifications, Recapitalizations and Mergers

Enforceability of Civil Liabilities Under U.S. Securities Laws

Experts

PART II

Item 20. Indemnification of Directors and Officers

Item 21. Exhibits and Financial Statements

Item 22. Undertakings

POWER OF ATTORNEY AND SIGNATURES

RATIO COMPUTATION

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Consent of Independent Registered Public Accounting Firm

CONSENT OF APSIS CONSULTORIA EMPRESARIAL LTDA.

CONSENT OF BANCO ITAÚ BBA S.A.

CONSENT OF BANCO BTG PACTUAL S.A.

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