Announcements

Report of Judicial Administrators in the insolvency process of Rio Forte - August 2024

Clarification on News Reported in the Press

Gender Equality Plan 2024

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE - APRIL 2024

APPOINTMENT OF THE COMPANY’S SECRETARY

PHAROL'S ANUAL GENERAL MEETING OF SHAREHOLDERS

NOTICE FROM RIO FORTE TO PHAROL FOR APPEARING BEFORE THE COMMERCIAL COURT OF THE GRAND DUCHY OF LUXEMBOURG

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE - DECEMBER 2023

CHANGES REGARDING THE COMPOSITION OF THE BOARD OF DIRECTORS

CLAIM OF PHAROL, SPGS, S.A. SUBMITTED TO THE LUXEMBOURG COURT FOR DECISION ON ADMISSION TO RIO FORTE'S INSOLVENCY LIABILITIES

Report of Judicial Administrators in the insolvency process of Rio Forte - August 2023

REDUCTION OF TAX LIABILITIES – 2008 PROCESS

REDUCTION OF TAX LIABILITIES - 2005 PROCESS

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE - APRIL 2023

NEW REDUCTION OF TAX LIABILITIES

REDUCTION OF TAX LIABILITIES

RESIGNATION OF BOARD MEMBER

QUALIFIED HOLDING – NOVO BANCO, S.A.

2023-04-20 - QUALIFIED HOLDING – BURLINGTON LOAN MANAGEMENT DAC

PHAROL'S ANUAL GENERAL MEETING OF SHAREHOLDERS

FINAL SUMMARY VOTING CHART

GRANTING OF THE JUDICIAL REORGANIZATION

NEW BLOW OUT MATERIAL FROM DISCUSSIONS WITH CREDITORS

NEW BLOW OUT MATERIAL FROM DISCUSSIONS WITH CREDITORS

JUDICIAL REORGANIZATION REQUEST

PRIOR CONSENT BY ANATEL FOR FIXED OPERATIONS SITES SALE

PROVISIONAL RELIEF IN THE UNITED STATES

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE - DECEMBER 2022

PRECAUTIONARY URGENT INJUNCTION

REQUEST FOR URGENT INJUNCTIVE RELIEF

END OF THE PERIOD FOR SHAREHOLDERS TO ADJUST THEIR POSITIONS

EGM REQUEST BY SHAREHOLDERS

SALE APPROVAL BY CADE OF FIXED OPERATIONS SITES

LIQUIDITY EVENTS NET REVENUE

CLOSING OF THE JUDICIAL REORGANIZATION

LIVE WITH GENIAL INVESTIMENTOS

NOTICE TO SHAREHOLDERS - REVERSE STOCK SPLIT

NOTICE OF NON-COMMENCEMENT

RESIGNATION FROM THE POSITION OF MEMBER OF THE COMPANY’S BOARD OF DIRECTORS

3Q22 RESULTS

HIRING OF FINANCIAL ADVISOR

EXTRAORDINARY GENERAL MEETING OF OI S.A.

REVERSE STOCK SPLIT PROPOSAL

ARBITRATION NOTICE

ADOPTIONS ON THE PROCEDURES TO HAVE ITS SHARE PRICE ADAPTED TO LOCAL RULES

RESULT OF THE PROCEDURE FOR THE SALE OF TELCO SITES

EXTENSION OF POST CLOSING ADJUST MARS

Notice to the Market disclosed by Oi - 2Q22 RESULTS

RESIGNATION FROM THE POSITION OF MEMBER OF THE COMPANY’S BOARD OF DIRECTORS

1Q22 RESULTS

POSTPONEMENT IN THE DISCLOSURE OF THE INTERIM FINANCIAL INFORMATION OF 1T22

Alteração relativa à composição do Conselho de Administração

TEMPORARY SUSPENSION OF THE STOCK'S PRICE ABOVE R$ 1,00 REQUERIMENT

TRANSACTION AGREEMENT WITH ANATEL

POSTPONEMENT OF THE FILING OF THE REFERENCE FORM

POSTPONEMENT IN THE DISCLOSURE OF THE INTERIM FINANCIAL INFORMATION OF 1Q22

CLOSING OF THE SALE OF MOBILE ASSETS UPI

EXTRAORDINARY GENERAL MEETING OF OI S.A.

4Q21 RESULTS

OI'S 4Q21 RESULTS RELEASE CALL

EXPIRATION OF THE TENDER OFFER OF THE OUTSTANDING SENIOR SECURED NOTES DUE 2026

CLOSING OF THE SALE OF MOBILE ASSETS UPI

TENDER OFFER OF ITS OUTSTANDING SENIOR SECURED NOTES DUE 2026

OI'S 4Q21 RESULTS RELEASE CALL

PHAROL ANNUAL GENERAL MEETING OF SHAREHOLDERS

TEMPORARY SUSPENSION OF THE STOCK'S PRICE ABOVE R$ 1,00 REQUERIMENT

OI'S 4Q21 RESULTS RELEASE CALL

Report of Judicial Administrators in the insolvency process of Rio Forte – December 2021

DEREGISTRATION OF OI FROM SEC

MOBILE ASSETS UPI DISPOSAL CADE’S APPROVAL

ORDINARY GENERAL SHAREHOLDERS’ MEETING DOCUMENTS

DECISION OF THE EUROPEAN COMMISSION - 25 JANUARY 2022

NOTICE TO SHAREHOLDERS - ORDINARY GENERAL SHAREHOLDERS’ MEETING

Management Transactions – Grupo Visabeira SGPS, S.A.

CONVENING OF ESGM TO DELIBERATE ON THE PROPOSED MERGER OF OI MOVEL

NOTICE TO THE MARKET DISCLOSED BY OI - 3Q21 RESULTS

NOTICE TO THE MARKET DISCLOSED BY OI - PARTIAL SALE OF UPI INFRACO CADE’S FINAL APPROVAL DECISION

MATERIAL FACT DISCLOSED BY OI - ORGANIZATIONAL CHANGES LEGAL DEPARTMENT

MATERIAL FACT DISCLOSED BY OI - VOLUNTARY DESLISTING OF OI'S ADRS FROM NYSE

DISPOSAL OF TREASURY SHARES

DISPOSAL OF TREASURY SHARES

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE - AUGUST 2021

NOTICE TO THE MARKET DISCLOSED BY OI - PARTIAL SALE OF UPI INFRACO - CADE’S APPROVAL

DISPOSAL OF TREASURY SHARES

DISPOSAL OF TREASURY SHARES

MATERIAL FACT DISCLOSED BY OI - INTENTION TO DELIST ITS AMERICAN DEPOSITARY RECEIPTS FROM THE NEW YORK STOCK EXCHANGE

MATERIAL FACT DISCLOSED BY OI - PARTIAL SALE OF UPI INFRACO EXECUTION OF INVESTMENT AGREEMENT AND OTHER COVENANTS

DISPOSAL OF TREASURY SHARES

DISPOSAL OF TREASURY SHARES

DISPOSAL OF TREASURY SHARES

DISPOSAL OF TREASURY SHARES

MATERIAL FACT DISCLOSED BY OI - ELECTION OF CHIEF FINANCIAL OFFICER AND INVESTOR RELATIONS OFFICER

MATERIAL FACT DISCLOSED BY OI - ORGANIZATIONAL CHANGES BOARD OF OFFICERS

NOTICE TO THE MARKET DISCLOSED BY OI - 2Q21 RESULTS

MATERIAL FACT DISCLOSED BY OI - SÊNIOR NOTES 2026 OI MÓVEL

NOTICE TO THE MARKET DISCLOSED BY OI - ENGAGEMENT WITH FINANCIAL INSTITUTIONS TO ASSESS DIP REFINANCING

NOTICE TO THE MARKET DISCLOSED BY OI – NOVA OI STRATEGIC PLAN - TRIENNIUM 2022-2024 NEW DATE

MATERIAL FACT DISCLOSED BY OI - RESULT OF THE COMPETITIVE PROCUREMENT PROCEDURE FOR THE PARTIAL SALE OF THE UPI INFRACO

NOTICE TO THE MARKET DISCLOSED BY OI – OI'S 2022-24 TRIENNIAL PLAN

MATERIAL FACT DISCLOSED BY OI - DEBENTURES ISSUANCE BY OI MÓVEL S.A.

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE - APRIL 2021

NOTICE TO THE MARKET DISCLOSED BY OI – COMPLETION OF SUBSCRIPTIONPAYMENT OF THE DEBENTURES OF BRASIL TELECOM COMUNICAÇÃO MULTIMÍDIA S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - NOMINATION OF MR. MARCELO PAVÃO LACERDA TO THE INNOVATION AND DIGITAL TRANSFORMATION

NOTICE TO THE MARKET DISCLOSED BY OI - 1Q21 RESULTS

MATERIAL FACT DISCLOSED BY OI - RESTATEMENT OF THE FINANCIAL STATEMENTS FOR THE 2020 FISCAL YEAR

NOTICE TO THE MARKET DISCLOSED BY OI - MERGER OF TELEMAR WITH AND INTO OI

APPOINTMENT OF THE COMPANY’S SECRETARY

PHAROL'S ANUAL GENERAL MEETING OF SHAREHOLDERS - AMENDMENT

2021-04-30 - PHAROL'S ANUAL GENERAL MEETING OF SHAREHOLDERS

MATERIAL FACT DISCLOSED BY OI - INFRACO M&A

MATERIAL FACT DISCLOSED BY OI - SALE OF THE TOWER UPI

NOTICE TO THE MARKET DISCLOSED BY OI - 4Q20 RESULTS

MATERIAL FACT DISCLOSED BY OI - SALE OF DATA CENTER UPI

NOTICE OF JUDICIAL ADMINISTRATORS OF THE INSOLVENCY PROCESS OF RIO FORTE

NOTICE TO THE MARKET DISCLOSED BY OI – EXTENSION OF THE EXCLUSIVITY AGREEMENT INFRA CO BTG

MATERIAL FACT DISCLOSED BY OI - INFRACO DEBENTURES

RESIGNATION OF BOARD MEMBER

MATERIAL FACT DISCLOSED BY OI - EXCLUSIVITY AGREEMENT INFRA CO BTG

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE - DECEMBER 2020

ACQUISITION OF TREASURY SHARES

NOTICE TO THE MARKET DISCLOSED BY OI – EXECUTION OF THE PURCHASE AND SALE AGREEMENT FOR THE MOBILE ASSETS SPES

MATERIAL FACT DISCLOSED BY OI - UPI INFRA CO BINDING PROPOSALS

OI’S ORDINARY GENERAL SHAREHOLDERS’ MEETING

ACQUISITION OF TREASURY SHARES

On-line Event Attendance with Genial Investimentos 01142021

ACQUISITION OF TREASURY SHARES

ACQUISITION OF TREASURY SHARES

MANAGEMENT TRANSACTIONS – GRUPO VISABEIRA SGPS, S.A.

ACQUISITION OF TREASURY SHARES

NOTICE TO THE MARKET DISCLOSED BY OI - EXECUTION OF THE SALE AND PURCHASE AGREEMENT FOR THE TOWERS UPI

NOTICE TO THE MARKET DISCLOSED BY OI – 2020 APIMEC PRESENTATION

ACQUISITION OF TREASURY SHARES

Qualified Holding – Real Vida Seguros S.A.

NOTICE TO THE MARKET DISCLOSED BY OI – OI'S PUBLIC MEETING FOR SHAREHOLDERS

NOTICE TO THE MARKET DISCLOSED BY OI – RESULT OF THE COMPETITIVE PROCUREMENT PROCEDURE FOR THE SALE OF THE MOBILE ASSETS UPI

NOTICE TO THE MARKET DISCLOSED BY OI – EXECUTION OF THE PURCHASE AND SALE AGREEMENT FOR THE DATA CENTER UPI

ACQUISITION OF TREASURY SHARES

NOTICE TO THE MARKET DISCLOSED BY OI – CONSULTANCY EGON ZEHNDER

ACQUISITION OF TREASURY SHARES

ACQUISITION OF TREASURY SHARES

ACQUISITION OF TREASURY SHARES - AMENDMENT OF THE ANNOUCEMENT OF NOVEMBER 11, 2020

MATERIAL FACT DISCLOSED BY OI - TRANSACTION AGREEMENT ENTERED INTO WITH ANATEL

MATERIAL FACT DISCLOSED BY OI - RESULT OF THE COMPETITIVE PROCUREMENT PROCEDURE FOR THE SALE OF UPI TOWERS

MATERIAL FACT DISCLOSED BY OI - RESULT OF THE COMPETITIVE PROCUREMENT PROCEDURE FOR THE SALE OF UPI DATA CENTER

ACQUISITION OF TREASURY SHARES

ACQUISITION OF TREASURY SHARES

ACQUISITION OF TREASURY SHARES

NOTICE TO THE MARKET DISCLOSED BY OI - 3Q20 RESULTS

ACQUISITION OF TREASURY SHARES

ACQUISITION OF TREASURY SHARES

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE - AUGUST 2020

ACQUISITION OF TREASURY SHARES

NOTICE TO THE MARKET – RATING S&P

NOTICE TO THE MARKET DISCLOSED BY OI – MINUTES OF THE EXTRAORDINARY GENERAL MEETING (10.16.2020)

NOTICE TO THE MARKET – REQUEST FOR ADOPTION OF MULTIPLE VOTING PROCESS AT THE EGM TO BE HELD ON 10.16.2020

NOTICE TO THE MARKET DISCLOSED BY OI – VOLUNTARY SEPARATION INCENTIVE PROGRAM

NOTICE TO THE MARKET DISCLOSED BY OI - RATING OUTLOOK S&P

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO SHAREHOLDERS - OI’S ORDINARY GENERAL SHAREHOLDERS’ MEETING

MATERIAL FACT DISCLOSED BY OI - AMENDMENT PLAN APPROVAL

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE OF NON-COMMENCEMENT OF THE EXTRAORDINARY GENERAL MEETING

NOTICE TO THE MARKET DISCLOSED BY OI - CONSOLIDATED SYNTHETIC VOTING MAP - EGM

NOTICE TO THE MARKET - MONTHLY ACTIVITY REPORT - OI'S JUDICIAL REORGANIZATION - WALD

QUALIFIED HOLDING – ABANTE ASESORES, S.A.

MATERIAL FACT DISCLOSED BY OI - APPROVAL OF THE AMENDMENT TO THE JUDICIAL REORGANIZATION PLAN

MATERIAL FACT DISCLOSED BY OI - MOBILE ASSETS UPI

NOTICE TO THE MARKET DISCLOSED BY OI - MARKETING SOUND TV CO.

MATERIAL FACT DISCLOSED BY OI - NEW VERSION OF PRJ ADDITIVE

MATERIAL FACT DISCLOSED BY OI - BLOW OUT

NOTICE TO THE MARKET DISCLOSED BY OI - 2Q20 RESULTS

MATERIAL FACT DISCLOSED BY OI - MOBILE UPI EXCLUSIVITY AGREEMENT

MATERIAL FACT DISCLOSED BY OI - RECEIVEMENT OF REVISED BINDING OFFER

NOTICE TO THE MARKET DISCLOSED BY OI - DISCLOSURE OF SIGNIFICANT OWNERSHIP INTEREST IN OI S.A.

MATERIAL FACT DISCLOSED BY OI - MOBILE UPI EXCLUSIVITY AGREEMENT - HIGHLINE

NOTICE TO THE MARKET DISCLOSED BY OI - MOBILE AND TOWERS BINDING PROPOSALS

Report of Judicial Administrators in the insolvency

MATERIAL FACT DISCLOSED BY OI - AMENDMENT TO THE JUDICIAL REORGANIZATION PLAN

NOTICE TO THE MARKET DISCLOSED BY OI - 1T20 RESULTS

AMERICAN DEPOSITARY SHARES (ADS) AND AMERICAN DEPOSITORY RECEIPTS (ADR) TERMINATION

MATERIAL FACT DISCLOSED BY OI - POSTPONEMENT OF 1Q20 FINANCIAL INFORMATION RELEASE

MATERIAL FACT DISCLOSED BY OI - RATING OUTLOOK S&P

PHAROL'S ANUAL GENERAL MEETING OF SHAREHOLDERS

NOTICE TO THE MARKET DISCLOSED BY OI - 4Q19 RESULTS

ADMINISTRATIVE OFFENSE - DECISION

MATERIAL FACT DISCLOSED BY OI - MANIFESTATIONS FROM THIRD PARTIES INTERESTED IN THE COMPANY’S MOBILE BUSINESS

MATERIAL FACT DISCLOSED BY OI - NEW GENERAL CREDITORS’ MEETING

REPORT OF JUDICIAL ADMINISTRATORS IN THE INSOLVENCY PROCESS OF RIO FORTE

QUALIFIED HOLDING – ABANTE ASESORES, S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - PROPERTY SALE

NOTICE TO THE MARKET DISCLOSED BY OI - SUSPENSION OF THE SPECIAL MONITORING BY ANATEL

NOTICE TO THE MARKET DISCLOSED BY OI - COMPLETIONOF SUBSCRIPTIONPAYMENT OF OI MÓVEL´S DEBENTURES

NOTICE TO THE MARKET DISCLOSED BY OI - CONTINUATION OF THE NON-CORE ASSET SALE PROJECT

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMB3 OFFICIAL LETTER

UPDATE AGREEMENT BETWEEN PHAROL/OI – DEPOSIT IN ESCROW ACCOUNT

MATERIAL FACT DISCLOSED BY OI - DISPOSAL AND TRANSFER OF SHARES - PT VENTURES SGPS S.A.

PHAROL'S EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS

MANAGEMENT TRANSACTIONS – GRUPO VISABEIRA SGPS, S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - SURPLUS PAYMENT FOR SISTEL PLAN

NOTICE TO THE MARKET DISCLOSED BY OI - DEBENTURES ISSUE BY OI MÓVEL

MANAGEMENT TRANSACTIONS – GRUPO VISABEIRA SGPS, S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - JUDICIAL MONTHLY REPORT - SEPTEMBER AND OCTOBER (PORTUGUESE VERSION)

NOTICE TO THE MARKET DISCLOSED BY OI - JUDICIAL MONTHLY REPORT - SEPTEMBER AND OCTOBER (PORTUGUESE VERSION)

NOTICE TO THE MARKET DISCLOSED BY OI - JUDICIAL MONTHLY REPORT - SEPTEMBER AND OCTOBER (PORTUGUESE VERSION)

NOTICE TO THE MARKET DISCLOSED BY OI - NEW CEO

NOTICE TO THE MARKET DISCLOSED BY OI - TRANSITION AS CEO

RESIGNATION OF BOARD MEMBER

QUALIFIED HOLDING – HIGH BRIDGE UNIPESSOAL LDA

NOTICE TO THE MARKET DISCLOSED BY OI - EXTENSION OF JUDICIAL REORGANIZATION

NOTICE TO THE MARKET DISCLOSED BY OI - 3Q19 RESULTS

QUALIFIED HOLDING – BANCO COMERCIAL PORTUGUÊS, S.A.

NOTICE OF THE EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON DECEMBER 18, 2019

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO THE HOLDERS OF LEGACY NOTES

NOTICE TO THE MARKET DISCLOSED BY OI - ORGANIZATIONAL CHANGE

RESIGNATION OF BOARD MEMBER

QUALIFIED HOLDING – ADAR MACRO FUND LTD

QUALIFIED HOLDING – REAL VIDA SEGUROS S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMB3 OFFICIAL LETTER

NOTICE TO THE MARKET DISCLOSED BY OI - APPOINTMENT OF CHIEF OPERATIONAL OFFICER

QUALIFIED HOLDING – BANCO COMERCIAL PORTUGUÊS, S.A.

PHAROL, SGPS S.A. INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL, SGPS S.A. INFORMS ABOUT ACQUISITION OF TREASURY SHARES

RESIGNATION OF BOARD MEMBER

PHAROL, SGPS S.A. INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL, SGPS S.A. INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL, SGPS S.A. INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL, SGPS S.A. INFORMS ABOUT ACQUISITION OF TREASURY SHARES

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE FROM THE BOARD OF DIRECTORS

NOTICE TO THE MARKET DISCLOSED BY OI - 2Q19 RESULTS

QUALIFIED HOLDING – BANCO COMERCIAL PORTUGUÊS, S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - STRATEGIC PLAN AND DISCLOSURE OF GUIDANCE

NOTICE TO THE MARKET DISCLOSED BY OI - CLARIFICATION ON PRESS RELEASE

NOTICE TO THE MARKET DISCLOSED BY OI - JUDICIAL DECISION JR

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL EQUITY INTEREST PT VENTURES

QUALIFIED HOLDING – BLACKHILL HOLDING LIMITED, LLC

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO THE HOLDERS OF LEGACY NOTES - DEFAULT RECOVERY ENTITLEMENT

QUALIFIED HOLDING – HIGH SEAS INVESTMENTS, LLC

NOTICE TO THE MARKET DISCLOSED BY OI - 1Q19 RESULTS

NOTICE TO THE MARKET DISCLOSED BY OI - ANNUAL REPORT FILED WITH THE SEC ON FORM 20-F

QUALIFIED HOLDING – BLACKHILL HOLDING LIMITED, LLC

UPDATE OF THE NUMBER OF SHARES HELD IN OI, S.A. - IN JUDICIAL RECOVERY (OI)

HOMOLOGATION OF THE AGREEMENT BETWEEN PHAROL AND OI

PHAROL'S ANNUAL GENERAL MEETING OF SHAREHOLDERS

2019-03-27 NOTICE TO THE MARKET DISCLOSED BY OI - Q18 RESULTS

ANNUAL GENERAL AND EXTRAORDINARY SHAREHOLDERS’ MEETING

QUALIFIED HOLDING – BLACKHILL HOLDING LIMITED, LLC

NOTICE - ITEMS REMOVED FROM THE AGENDA - ANNUAL SHAREHOLDER'S MEETING - 29 MARCH 2019

NOTICE - LETTER RECEIVED - DECISION OF THE CHAIRMAN OF THE GENERAL MEETING - ANNUAL SHAREHOLDER'S MEETING - 29 MARCH 2019

QUALIFIED HOLDING – HIGH BRIDGE UNIPESSOAL, LDA

2019-03-12 -QUALIFIED HOLDING – BLACKHILL HOLDING LIMITED, LLC

QUALIFIED HOLDING – ADAR MACRO FUND LTD

INCLUSION AND REORDERING OF ITEMS IN THE AGENDA OF THE ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MARCH 29, 2019

NOTICE OF THE ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MARCH 29, 2019

MATERIAL FACT DISCLOSED BY OI - ARBITRATION DECISION - UNITEL

MATERIAL FACT DISCLOSED BY OI - REPURCHASE OF PREFERRED SHARES

PHAROL'S EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS

PHAROL RECEIVES SUBPOENA FROM ESPÍRITO SANTO INTERNATIONAL, S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO SHAREHOLDERS- NEW DATE OF THE GENERAL SHAREHOLDERS´ MEETING OF OI S.A.

SUBSCRIPTION OF NEW SHARES IN THE CAPITAL INCREASE OF OI, S.A. – IN JUDICIAL RECOVERY (“OI”)

MATERIAL FACT DISCLOSED BY OI - MATERIAL FACT - BACKSTOP FEE SHARES AND CONCLUSION THE CAPITAL INCREASE

2019-01-28 - NOTICE TO THE MARKET DISCLOSED BY OI - COMMUNICATION ABOUT THE CAPITAL INCREASE APPROVED BY THE BOARD OF DIRECTORS

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO SHAREHOLDERS - OI’S ORDINARY GENERAL SHAREHOLDERS’ MEETING

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO SHAREHOLDERS AND TO ADS HOLDERS

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO SHAREHOLDERS AND TO ADS HOLDERS

PHAROL'S EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS

MANAGEMENT TRANSACTIONS – BLACKHILL HOLDING LIMITED LLC

QUALIFIED HOLDING – HIGH SEAS INVESTMENTS, LLC

QUALIFIED HOLDING – BLACKHILL HOLDING LIMITED, LLC

Participação Qualificada – Blackhill Holding Limited, LLC

OI AND PHAROL ESTABLISH AGREEMENT TO END DISPUTES

MANAGEMENT TRANSACTIONS – GRUPO VISABEIRA SGPS, S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO ADS HOLDERS

RESOLUTION OF THE BOARD OF DIRECTORS ON THE CAPITAL INCREASE

NOTICE TO THE MARKET DISCLOSED BY OI - EXTENSION OF THE PERIOD FOR EXERCISING THE PREEMPTIVE RIGHT IN THE CAPITAL INCREASE

PHAROL’s Extraordinary General Meeting Of Shareholders_en

NOTICE TO THE MARKET DISCLOSED BY OI - 3Q18 RESULTS

NOTICE TO SHAREHOLDERS ADS HOLDERS - CAPITAL INCREASE - NEW RESOURCES

FILING OF THE COURT ACTION AGAINST OI, S.A. – IN JUDICIAL REORGANIZATION AND ITS SUBSIDIARIES BASED IN PORTUGAL

CAPITAL INCREASE - NEW RESOURCES

RECONSIDERATION OF THE DECISION OF SUPPORTING ARBITRATOR

NOTICE OF THE EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON NOVEMBER 23, 2018

RECOGNITION IN PORTUGAL OF THE CONFIRMATION OF THE JR PLAN

Formal Statement on the Urgent Decision Issued in the Arbitration Proceeding Held Between Oi and Its Shareholder Bratel S.à.r.l._en

APPROVAL OF THE CONDITIONS OF THE CAPITAL INCREASE – NEW RESOURCES

PHAROL REPORTS SUSPENSION OF THE COMPANY’S RESOLUTION REGARDING THE ELECTION OF THE CORPORATE BODIES FOR THE 20182020 TRIENNIUM_en

Press release on the judicial decision regarding Oi’s judicial reorganization proceeding and arbitration instituted by the shareholder _en

WARRANT AND ADWS EXERCISE

ANNOUNCEMENT ABOUT OI'S EGM

ANATEL´S DECISION

PHAROL Informs On Court Proceedings_en

PHAROL EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS_en

FORM F-1

POSTPONEMENT AND MATERIALS ABOUT THE EXTRAORDINARY GENERAL MEETING OF OI S.A.

2Q18 RESULTS

MATERIAL FACT DISCLOSED BY OI - SUSPENSION OF VOTING RIGHTS OF A GROUP OF SHAREHOLDERS

NOTICE OF THE EXTRAORDINARY GENERAL MEETING OF THE SHAREHOLDERS OF OI, S.A.

DECISION OF THE PORTUGUESE COURT ON THE RECOGNITION OF THE CONFIRMATION OF THE JR PLAN

NEW NOTES INTEREST PAYMENT ELECTION

NON QUALIFIED RECOVERY FINAL RESULTS

ANNOUNCE CLOSING OF THE QUALIFIED RECOVERY SETTLEMENT

RESPONSE TO THE CVMB3 OFFICIAL LETTER

CLOSING OF THE PRE-EMPTIVE RIGHTS OFFERING AND CLOSING DATE FOR QUALIFIED RECOVERY SETTLEMENT

REFUND THE AMOUNTS DUE TO THE CONFIRMATION IN PART OF THE CAPITAL INCREASE

CONFIRMATION OF THE CAPITAL INCREASE AND TERMINATION OF THE STATUTORY VOTE RESTRICTION

QUALIFIED RECOVERY FINAL RESULTS

AMENDMENT OF THE DISPOSITION OF SHARES DISCLOSURE DATED JULY 5, 2018

END OF THE TERM FOR THE EXERCISE OF THE PREEMPTIVE RIGHT

Clarification on PHAROL's Participation in Oi Capital Increase_en

Disclosure of Opinion and Publication on Oi Judicial Reorganization_en

ORDER GIVEN BY THE BRAZILIAN COMPETITION AUTHORITY (CADE)

SALE OF MATERIAL EQUITY INTEREST - GOLDMAN SACHS

QUALIFIED RECOVERY, NON-QUALIFIED RECOVERY AND RETAIL

ACQUISITION OF MATERIAL EQUITY INTEREST - GOLDMAN SACKS

Injuction Filed Against Oi, S.A. – In Judicial Reorganization and its Subsidiaries in Portugal_en

END OF THE PERIOD FOR APPEAL AGAINST THE DECISION TO APPROVE THE COMPOSITION PLANS OF PTIF AND OI COOP

ORDER GIVEN BY THE BRAZILIAN COMPETITION AUTHORITY (CONSELHO ADMINISTRATIVO DE DEFESA ECONÔMICA - CADE)

RETAIL NOTES LAUNCH NOTICE

DECISION OF AMERICAN COURT CONCERNING THE CHAPTER 15 OF THE US BANKRUPTCY CODE

CAPITAL INCREASE

APPROVAL OF THE WAIVER OF THE CONDITIONS PRECEDENT TO THE CAPITAL INCREASE

SALE OF MATERIAL SHAREHOLDING INTEREST - JGP

HOMOLOGATION OF THE COMPOSITION PLANS OF PTIF AND OI COOP BY DUTCH LAW

NON-DEAL ROADSHOW PRESENTATION - JUNE2018

Appointment of the Company’s Secretary_en

APPROVALS OF THE COMPOSITION PLANS OF PTIF AND OI COOP

1Q18 RESULTS

PHAROL ANNUAL MEETING OF SHAREHOLDERS_en

Information on Item 6 of the Agenda for the Annual Shareholders' Meeting, Announced for May 25, 2018

RESPONSE TO THE CVMB3 OFFICIAL LETTER

COMPREHENSIVE ANNUAL REPORT FILED WITH THE SEC ON FORM 20-F

MINUTES OF THE EXTRAORDINARY GENERAL MEETING (05142018)

POSTPONEMENT OF THE DISCLOSURE OF THE FIRST QUARTER FINANCIAL INFORMATION FOR 2018

Qualified Holding – Adar Capital Partners Ltd._en

ACQUISITION OF MATERIAL EQUITY INTEREST - JGP

NOTICE OF THE ANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON MAY 25, 2018

Qualified Holding – Adar Capital Partners Ltd._en

Qualified Holding – Norges Bank_en

REQUEST FOR APPOINTMENT OF A MEMBER AND RESPECTIVE ALTERNATE MEMBER OF THE FISCAL COU

MATERIAL SHAREHOLDING INTEREST - GOLDMAN SACHS

Qualified Holding – Solus Alternative Asset Management LPQualified Holding – Solus Alternative Asset Management LP

RESPONSE TO THE CVMB3 OFFICIAL LETTER

Qualified Holding – Discovery Capital Management, LLCen

Qualified Holding – Norges Bank_en

Q17 RESULTS

NOTICE TO SHAREHOLDERS - MANAGEMENT DOCUMENTS RELATED TO THE FISCAL YEAR ENDED DECEMBER 31, 2017

MINUTES OF THE FISCAL COUNCIL MEETING HELD ON APRIL 12, 2018

FINAL RESULTS OF THE RECOVERY ELECTIONS

CONSENT SOLICITATIONS OF PTIF AND OI COOP

Qualified Holding – Norges Bank_en

Qualified Holding – Norges Bank_en

Qualified Holding – Norges Bank_en

Introduction of a Mediation Procedure_en

NOTICE OF THE ANNUAL GENERAL MEETING OF THE SHAREHOLDERS OF OI, S.A.

POSTPONED DISCLOSURE OF FINANCIAL STATEMENTS

S&P´S UPDATE ON OI´S CREDIT RATING

CHANGES IN THE COMPANY’S ORGANIZATIONAL STRUCTURE

Qualified Holding – Norges Bank_en (1)

Qualified Holding – Norges Bank_en

PRELIMINARY RESULTS OF THE RECOVERY ELECTIONS

CONFLICT OF JURISDICTION INJUNCTION

ANNEX 30-XXXII OF CVM INSTRUCTION NO. 55214

SALE OF MATERIAL SHAREHOLDING INTEREST - JGP

END OF THE DEADLINE FOR THE CHOICE OF PAYMENT OPTIONS BY BONDHOLDERS CREDITORS

MATERIAL SHAREHOLDING INTEREST - JGP

MATERIAL FACT DISCLOSED BY OI - SUSPENSION OF VOTING RIGHTS OF A GROUP OF SHAREHOLDERS

PHAROL informs on the Content of the Decision of the_en

2018-03-08 - Qualified Holding – Norges Bank

APPROVALS OF MODIFICATIONS IN THE COMPANY’S ORGANIZATIONAL STRUCTURE

Deferral of Urgent Measure in Arbitration Procedure_en

MATERIAL FACT DISCLOSED BY OI - ARBITRATION PROCEEDING

APPROVAL OF A CAPITAL INCREASE FOR THE CAPITALIZATION OF CREDITS

MERGER OF OI INTERNET INTO OI MÓVEL

OI S.A.´S ORDINARY GENERAL SHAREHOLDERS´ MEETING

SIGNATURE OF A MEMORANDUM OF UNDERSTANDING

END OF THE DEADLINE TO CHOOSE OPTIONS AND EXTENSION OF THE DEADLINE FOR BONDHOLDERS

Qualified Holding – Norges Bank_en

MATERIAL SHAREHOLDING INTEREST - JGP

Qualified Holding – Norges Bank_en

Qualified Holding – Norges Bank_en

SALE OF MATERIAL SHAREHOLDING INTEREST - JGP

MATERIAL FACT DISCLOSED BY OI - DECISION OF THE JUDICIAL REORGANIZATION COURT ON EXTRAORDINARY GENERAL MEETING

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL SHAREHOLDING INTEREST - JGP

Clarification on the latest developments in Oi's Judicial Recovery and on the Extraordinary General Meeting of February 7, 2018_en (1)

QUALIFIED HOLDING – NORGES BANK

MATERIAL FACT DISCLOSED BY OI - CLARIFICATIONS ON THE EXTRAORDINARY GENERAL MEETING REQUESTED BY BRATEL S.À.R.L.

NOTICE TO THE MARKET DISCLOSED BY OI - SALE OF MATERIAL SHAREHOLDING INTEREST - JGP

Holding of the General Shareholders’ Meeting of Oi S.A. – In Judicial Recovery on February 7, 2018_en

Ratification of the call for the General Shareholders’ Meeting of Oi S.A. - In Judicial Recovery en (1)

PUBLICATION OF THE DECISION THAT CONFIRMED THE JUDICIAL REORGANIZATION PLAN

NOTICE TO THE MARKET DISCLOSED BY OI - DECISION ABOUT EXTRAORDINARY GENERAL MEETING

MATERIAL SHAREHOLDING INTEREST

BONDHOLDER PAYMENT OPTION

HOLDING OF THE GENERAL SHAREHOLDERS’ MEETING OF OI S.A. - IN JUDICIAL RECOVERY_en

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO SHAREHOLDERS - IMPORTANT NOTICE

PRESS RELEASE

Qualified Holding – Norges Bank_en

Management Transactions – Grupo Visabeira SGPS, S.A. - Addition_en

PRESS RELEASE

Management Transactions – Grupo Visabeira SGPS,_en

Qualified Holding – Grupo Visabeira SGPS, S.A._en (1)

SALE OF MATERIAL SHAREHOLDING INTEREST - SOCIETÉ MONDIALE

NOTICE TO THE MARKET DISCLOSED BY OI - NOTICE TO SHAREHOLDERS - OI’S ORDINARY GENERAL SHAREHOLDERS’ MEETING

NOTICE TO THE MARKET DISCLOSED BY OI - NEW MEMBERS OF THE TRANSITIONAL BOARD OF DIRECTORS

Qualified Holding – Discovery Capital Management, LLC_en

Judicial Confirmation of Oi S.A. – Em Recuperação Judicial’s Reorganization Plan_en

MATERIAL FACT DISCLOSED BY OI - RATIFICATION OF THE JUDICIAL REORGANIZATION PLAN

SUMMONING OF OI S.A. – EM RECUPERAÇÃO JUDICIAL’S SHAREHOLDERS MEETING

MATERIAL FACT DISCLOSED BY OI - REQUEST TO CALL EXTRAORDINARY GENERAL SHAREHOLDERS’ MEETING

RESIGNATION OF DIRECTOR

NOTICE TO THE MARKET DISCLOSED BY OI - FILING OF THE APPROVED JUDICIAL REORGANIZATION PLAN WITH ITS EXHIBITS AND THE MINUTES

JUDICIAL RECOVERY PLAN OF OI

QUALIFIED HOLDING – HESTIA INVESTMENTS DESIGNATED ACTIVITY COMPANY

APPROVAL OF THE JUDICIAL REORGANIZATION PLAN

MATERIAL FACT DISCLOSED BY OI - RESTRUCTURING SETTLEMENT NEGOTIATIONS AND DISCUSSIONS

OPINION OF THE BOARD OF DIRECTORS ON THE JUDICIAL RECOVERY PLAN OF OI

RESTRUCTURING SETTLEMENT NEGOTIATIONS

SUBMISSION OF A NEW VERSION OF THE JUDICIAL REORGANIZATION PLAN

QUALIFIED HOLDING – NORGES BANK

MATERIAL FACT DISCLOSED BY OI - DECISION OF AMERICAN COURT CONCERNING THE CHAPTER 15 OF THE US BANKRUPTCY CODE

MATERIAL FACT DISCLOSED BY OI - DECISION OF POSTPONEMENT OF THE GENERAL MEETING OF CREDITORS AND OTHER MATTERS

MATERIAL FACT DISCLOSED BY OI - APPOINTMENT OF CHIEF EXECUTIVE OFFICER

MATERIAL FACT DISCLOSED BY OI - ANATEL PRECAUTIONARY MEASURE

MATERIAL FACT DISCLOSED BY OI - SUBMISSION OF NEW VERSIONS OF THE JUDICIAL REORGANIZATION PLAN AND THE PSA

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMB3 OFFICIAL LETTER

MATERIAL FACT DISCLOSED BY OI - RESIGNATION OF CHIEF EXECUTIVE OFFICER

NOTICE TO THE MARKET DISCLOSED BY OI - ADJUSTMENTS APPROVED BY THE BOARD OF DIRECTORS TO THE TERMS AND CONDITIONS OF THE J.R.

NOTICE TO THE MARKET DISCLOSED BY OI - ADDITIONAL CURE PERIOD GRANTED BY THE NYSE FOR OI TO FILE ANNUAL REPORT ON FORM 20-F

MATERIAL FACT DISCLOSED BY OI - DECISION OF THE COURT ABOUT THE OFFICERS APPOINTED BY THE BOARD OF DIRECTORS

3Q17 RESULTS

POTENTIAL COURT ACTION BY ESPIRITO SANTO INTERNATIONAL (IN INSOVENCY)

MATERIAL FACT DISCLOSED BY OI - NEW DATES FOR THE GENERAL MEETING OF CREDITORS

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMB3 OFFICIAL LETTER

MATERIAL FACT DISCLOSED BY OI - ANATEL PRECAUTIONARY MEASURE

MATERIAL FACT DISCLOSED BY OI - RESTRUCTURING SETTLEMENT DISCUSSIONS

NOTICE TO THE MARKET DISCLOSED BY OI - NOTE FROM THE BOARD OF DIRECTORS

MATERIAL FACT DISCLOSED BY OI - CHANGES IN MANAGEMENT

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMB3 OFFICIAL LETTER

MATERIAL FACT DISCLOSED BY OI - NEW DATE FOR THE FIRST CALL OF THE GENERAL MEETING OF CREDITORS

MATERIAL FACT DISCLOSED BY OI - RESTRUCTURING SETTLEMENT NEGOTIATIONS

MATERIAL FACT DISCLOSED BY OI - RESCHEDULING OF THE GENERAL MEETING OF CREDITORS

NOTICE TO THE MARKET DISCLOSED BY OI - SALE OF MATERIAL SHAREHOLDING INTEREST - BANK OF AMERICA CORPORATION

REPLY TO B3 OFFICIAL LETTER

MATERIAL FACT - Submission of the new version of the Judicial Reorganization Plan

RESTRUCTURING SETTLEMENT NEGOTIATIONS

MATERIAL FACT DISCLOSED BY OI - RESIGNATION OF CHIEF FINANCIAL OFFICER AND INVESTOR RELATIONS OFFICER

NOTICE TO THE MARKET DISCLOSED BY OI - HIRING OF MARKET MAKER

CORPORATE REORGANIZATION – BRATEL S.À.R.L. - CONCLUSION

Oi_Facto Relevante_en - Postponement of the General Meeting of Creditors

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMB3 OFFICIAL LETTER

NOTICE TO THE MARKET DISCLOSED BY OI - DISPOSITION OF PREFERRED SHARES - GOLDMAN SACHS

CHANGES REGARDING THE COMPOSITION OF THE BOARD OF DIRECTORS

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMB3 OFFICIAL LETTER

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMB3 OFFICIAL LETTER

QUALIFIED HOLDING – NORGES BANK

CORPORATE REORGANIZATION – BRATEL S.À.R.L.

RESIGNATION OF DIRECTOR

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL SHAREHOLDING INTEREST - GOLDMAN SACHS

NOTICE TO THE MARKET DISCLOSED BY OI - DISPOSITION OF PREFERRED SHARES - GOLDMAN SACHS

NOTICE TO THE MARKET DISCLOSED BY OI - APPROVAL OF THE DATES OF THE GENERAL MEETING OF CREDITORS

NOTICE TO THE MARKET DISCLOSED BY OI - RECOGNITION OF JUDICIAL REORGANIZATION PROCEEDING IN PORTUGAL

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL SHAREHOLDING INTEREST - GOLDMAN SACHS

ANATEL OFFICIAL LETTER

Notice to the Market disclosed by Oi - 2Q17 Results

Notice to the Market disclosed by Oi

NOTICE TO THE MARKET DISCLOSED BY OI - UPDATES CONCERNING THE JUDICIAL REORGANIZATION PLAN

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL SHAREHOLDING INTEREST - BANK OF AMERICA

NOTICE TO THE MARKET DISCLOSED BY OI - DECISION OF THE DUTCH COURT OF APPEALS

NOTICE TO THE MARKET DISCLOSED BY OI - DISPOSAL OF SHAREHOLDING (ART. 12 OF THE INSTR. CVM 358) - SAFRA

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

QUALIFIED HOLDING – SOLUS ALTERNATIVE ASSET MANAGEMENT LP

Changes regarding the composition of the Board of Directors

QUALIFIED HOLDING – NORGES BANK

NOTICE TO THE MARKET DISCLOSED BY OI - CREDITORS SETTLEMENT PROGRAM

QUALIFIED HOLDING – DISCOVERY CAPITAL MANAGEMENT, LLC

RESIGNATION OF DIRECTOR

NOTICE TO THE MARKET DISCLOSED BY OI - PUBLICATION OF PUBLIC NOTICE OF THE LIST OF CREDITORS

2017-05-30 - QUALIFIED HOLDING – NORGES BANK

QUALIFIED HOLDING – CREDIT SUISSE GROUP AG

QUALIFIED HOLDING – CREDIT SUISSE GROUP AG

PHAROL’S GENERAL MEETINGS OF SHAREHOLDERS

QUALIFIED HOLDING – RENAISSANCE TECHNOLOGIES LLC

QUALIFIED HOLDING – HIGH BRIDGE UNIPESSOAL, LDA.

QUALIFIED HOLDING – BANCO COMERCIAL PORTUGUÊS, S.A

FAILURE TO TIMELY FILE ANNUAL REPORT ON FORM 20-F

QUALIFIED HOLDING – NORGES BANK

SECOND LIST OF CREDITORS

EXTENSION OF THE STAY PERIOD

QUALIFIED HOLDING – RENAISSANCE TECHNOLOGIES LLC

Notice to the Market disclosed by Oi - 1Q17 Results

NOTICE TO THE MARKET DISCLOSED BY OI - LETTER SENT TO THE COMPANY BY ORASCOM TMT INVESTMENTS S.À.R.L.

NOTICE TO THE MARKET DISCLOSED BY OI - DECISION OF THE DUTCH COURT OF APPEAL ON REQUESTS FOR CONVERSION OF THE PROCEDURES FOR SUSPENSION OF PAYMENTS

CLARIFICATION REGARDING JUDICIAL DECISION TO APPROVE INSOLVENCY PROCEEDINGS OF OI'S NETHERLANDS SUBSIDIARIES

Information About Judgment of the Judicial Court of

RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

NOMINATION OF ESCRITÓRIO DE ADVOCACIA ARNOLDO WALD FOR THE ROLE OF JUDICIAL ADMINISTRATOR

NOTICE TO THE MARKET DISCLOSED BY OI - DISPOSAL OF SHAREHOLDING (ART. 12 OF THE INSTR. CVM 358) - POINTSTATE CAPITAL LP.

Notice to the Market disclosed by Oi

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL SHAREHOLDING INTEREST – GOLDMAN SACHS

NOTICE TO THE MARKET DISCLOSED BY OI - LETTER SENT TO THE COMPANY BY ORASCOM TMT INVESTMENTS S.À.R.L.

NOTICE TO THE MARKET DISCLOSED BY OI - DISPOSAL OF SHAREHOLDING (ART. 12 OF THE INSTR. CVM 358) - SAFRA

NOTICE TO THE MARKET DISCLOSED BY OI - REPLACEMENT OF EXTERNAL AUDITOR

INFORMATION RELATED TO THE SUSPENSION OF PAYMENTS PROCEEDINGS OF OI BRASIL HOLDINGS COÖPERATIEF UA AND PORTUGAL TELECOM

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

INFORMATION DISCLOSED BY OI - ANNUAL GENERAL MEETING OF THE SHAREHOLDERS OF OI, S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - PRESENTATION TO THE COURT OF THE NEW FINANCIAL CONDITIONS AS ADJUSTMENTS TO THE JRP

NOTICE TO THE MARKET DISCLOSED BY OI - REQUEST FOR CLARIFICIATIONS ABOUT NEWS PUBLISHED IN THE PRESS

MANAGING DIRECTOR

MATERIAL FACT DISCLOSED BY OI - APPROVAL OF BASIC CONDITIONS FOR ADJUSTMENTS TO THE JUDICIAL REORGANIZATION PLAN

NOTICE TO THE MARKET DISCLOSED BY OI - Q16 RESULTS

MATERIAL SHAREHOLDING INTEREST - SAFRA

NOTICE TO THE MARKET DISCLOSED BY OI - RESIGNATION OF BOARD MEMBER

NOTICE TO THE MARKET DISCLOSED BY OI - RECOGNITION OF JUDICIAL REORGANIZATION PROCEEDING IN PORTUGAL

RESIGNATION OF DIRECTOR

NOTICE TO THE MARKET DISCLOSED BY OI - LETTER SENT TO THE COMPANY BY ORASCOM TMT INVESTMENTS S.À.R.L.

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

NOTICE TO THE MARKET DISCLOSED BY OI - S&P´S UPDATE ON OI´S CREDIT RATING

INFORMATION RELATED TO THE SUSPENSION OF PAYMENTS PROCEEDINGS OF OI BRASIL HOLDINGS COÖPERATIEF UA AN

INFORMATION RELATED TO THE SUSPENSION OF PAYMENTS PROCEEDINGS OF OI BRASIL HOLDINGS COÖPERATIEF UA AND PORTUGAL TELECOM INTERNATIONAL FINANCE B.V.

PARTICIPAÇÃO ACIONÁRIA RELEVANTE - SAFRA

NOTICE TO THE NOTICE TO THE MARKET - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

NOTICE TO THE MARKET DISCLOSED BY OI - DENIAL TO THE REQUEST FOR CONVERSION OF THE SUSPENSION OF PAYMENTS PROCEEDING

NOTICE TO THE MARKET DISCLOSED BY OI - BOARD OF DIRECTOR´S MEETING

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

NOTICE TO THE MARKET DISCLOSED BY OI - TERMINATION OF THE ARBITRATION PROCEEDINGS AGAINST SUBSIDIARIES

NOTICE TO THE MARKET DISCLOSED BY OI - LETTER SENT TO THE COMPANY BY ORASCOM TMT INVESTMENTS S.À.R.L.

NOTICE TO THE MARKET DISCLOSED BY OI - CLARIFICATIONS REGARDING PRESS ARTICLE

NOTICE TO THE MARKET DISCLOSED BY OI - CLARIFICATIONS REGARDING PRESS ARTICLE

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

POSTPONEMENT OF DECISION REGARDING THE HEARINGS ABOUT THE APPLICATIONS FOR CONVERSION OF THE SUSPENSION OF PAYMENTS

DISCOVERY CAPITAL MANAGEMENT, LLC

MATERIAL FACT DISCLOSED BY OI - HEARING IN THE NETHERLANDS ABOUT REQUESTS FOR THE CONVERSION OF THE SUSPENSION OF PAYMENT PROCEEDINGS

QUALIFIED HOLDING – RENAISSANCE TECHNOLOGIES LLC

MATERIAL FACT DISCLOSED BY OI - DECISION OF THE BOARD OF DIRECTORS OF ANATEL CONCERNING THE EFFECTIVE ENTRY OF NEW MEMBERS T

NOTICE TO THE MARKET DISCLOSED BY OI - ALTERNATIVE JUDICIAL REORGANIZATION PLAN

NOTICE TO THE MARKET DISCLOSED BY OI - REQUEST FOR AUTHORIZATION FOR THE SALE OF DIRECT AND INDIRECT INTERESTS IN TIMOR TELECOM S.A

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

Qualified Holding – High Seas Investments, LLC

NOTICE TO THE MARKET DISCLOSED BY OI - CONVERSION OF THE SUSPENSION OF PAYMENTS PROCEEDINGS

NOTICE TO THE MARKET DISCLOSED BY OI - UPDATES CONCERNING THE JUDICIAL REORGANIZATION

Addition to the Qualified Holding – High Seas Capital Investments, LLC

NOTICE TO THE MARKET DISCLOSED BY OI - HIRING OF FINANCIAL ADVISOR

Qualified Holding – Hestia Investments DAC

OI DICLOSES THE THIRD QUARTER RESULTS

NOTICE TO THE MARKET DISCLOSED BY OI - REPLY TO BM&FBOVESPA OFFICIAL LETTER

MATERIAL FACT DISCLOSED BY OI - ADOPTION OF AN INJUNCTION BY ANATEL

Qualified Holding – High Seas Capital Investments, LLC

Resignation of Director

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

NOTICE TO THE MARKET DISCLOSED BY OI - RESPONSE TO THE CVMBM&FBOVESPA OFFICIAL LETTER

NOTICE TO THE MARKET DISCLOSED BY OI - DISPOSAL OF SHAREHOLDING (ART. 12 OF THE INSTR. CVM 358) - BANK OF AMERICA

NOTICE TO THE MARKET DISCLOSED BY OI - SUSPENSION OF PAYMENTS – PTIF B.V. – IN JUDICIAL REORGANIZATION

NOTICE TO THE MARKET DISCLOSED BY OI - DISPOSAL OF SHAREHOLDING (ART. 12 OF THE INSTR. CVM 358) - MORGAN STANLEY

NOTICE TO THE MARKET DISCLOSED BY OI - UPDATED LIST OF CREDITORS

NOTICE TO THE MARKET DISCLOSED BY OI - REPLY TO BM&FBOVESPA OFFICIAL LETTER

Approval of the agreement between the Société Mondiale and Bratel

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL SHAREHOLDING INTEREST - CQS DIRECTIONAL OPPORTUNITIES MASTER FUND LIMITED

MATERIAL FACT DISCLOSED BY OI - NOMINATION OF NEW MEMBERS FOR THE BOARD OF DIRECTORS

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL SHAREHOLDING INTEREST - BANK OF AMERICA CORPORATION

MATERIAL FACT DISCLOSED BY OI - TRANSACTION BETWEEN BRATEL AND SOCIÉTÉ MONDIALE

MATERIAL FACT DISCLOSED BY OI - RESIGNATION OF CHIEF FINANCIAL OFFICER AND INVESTOR RELATIONS OFFICER

U.S. Securities and Exchange Commission Issues Settled Cease-and-Desist Order against PHAROL, SGPS S.A.

Conclusion of an agreement between Bratel and Société Mondiale

MATERIAL FACT DISCLOSED BY OI - RESIGNATION OF BOARD MEMBER

NOTICE TO THE MARKET DISCLOSED BY OI - DISPOSAL OF SHAREHOLDING (ART. 12 OF THE INSTR. CVM 358) - MORGAN STANLEY

NOTICE TO THE MARKET DISCLOSED BY OI - JUDICIAL DECISION - SUSPENSION OF THE SHAREHOLDERS’ MEETINGS

MATERIAL FACT DISCLOSED BY OI - JUDICIAL DECISION - SUSPENSION OF THE SEPTEMBER 8, 2016 EXTRAORDINARY GENERAL SHAREHOLDERS’

NOTICE TO THE MARKET DISCLOSED BY OI - REQUESTS FOR THE ADOPTION OF CUMULATIVE VOTING

NOTICE TO THE MARKET DISCLOSED BY OI - REPLY TO BM&FBOVESPA OFFICIAL LETTER

Notice to the Market disclosed by Oi - Acceptance of Urgente Measures in Arbitration Proceedin

Notice to the Market disclosed by Oi - Presentation of the Judicial Reorganization Plan

NOTICE TO THE MARKET DISCLOSED BY OI - MATERIAL SHAREHOLDING IN OI S.A.

NOTICE TO THE MARKET DISCLOSED BY OI - NEWS ARTICLES PUBLISHED BY THE PRESS

MATERIAL FACT DISCLOSED BY OI - SUSPENSION OF THE EXTRAORDINARY GENERAL SHAREHOLDERS’ MEETINGS OF SEPTEMBER 8, 2016

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi

Qualified Holding – Hestia Investments DAC

OI DICLOSES THE SECOND QUARTER RESULTS

Notice to the Market disclosed by Oi - Call for General Shareholders’ Meetings

Notice to the Market disclosed by Oi - Suspension of paym

Press Release

2016-08-09 - Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi - CVM

Notice to the Market disclosed by Oi - ANATEL

Notice to the Market disclosed by Oi - SOCIÉTÉ MONDIALE

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi - Nomination of Judicial Administrator

Changes regarding the composition of the Board Of Directors

Notice to the Market disclosed by Oi - Meeting of the Board of Directors

Notice to the Market disclosed by Oi - Ratification of the Request for Judicial Reorganization

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi - CVM

Notice to the Market disclosed by Oi

Shareholders’ Letter Regarding the Required Extraordinary General Shareholders’ Meeting Call

Shareholders’ Letter Regarding the Required Extraordinary General Shareholders’ Meeting Call

NOTICE TO THE MARKET RELEASED BY OI - DECLARATION OF ACQUISITION OF RELEVANT SHAREHOLDE

NOTICE TO THE MARKET RELEASED BY OI - DECLARATION OF ACQUISITION OF RELEVANT SHAREHOLDING - MA

PHAROL SGPS, S.A. informs about resignation of the members of the Board of the Shareholders General Meeting

Announcement by Oi, S.A. – Request for call of general meeting of shareholders of Oi, S.A. to replace directors

Qualified Holding – NOVO BANCO S.A. – Additional Information

Qualified Holding – NOVO BANCO S.A.

Qualified Holding – Hestia Investments DAC

Management Transactions

ADDITIONAL INFORMATION ABOUT MATERIAL FACT DISCLOSED BY OI

PHAROL, SGPS S.A. informs about the Economic Renaissance Technologies LLC

PHAROL’s Annual General Meeting of Shareholders

Notice to the Market disclosed by Oi - S&P rating

PHAROL, SGPS S.A. intends to terminate its U.S. reporting obligations under the U.S. Securities Exchange Act of 1934

Material fact disclosed by Oi

NOTICE TO THE MARKET

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

Annual General Meeting - Oi, S.A

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

OI DISCLOSES THE 2015 FOURTH QUARTER RESULTS

MATERIAL FACT RELEASED BY OI - DISCONTINUATION OF GUIDANCE DISCLOSURE

MATERIAL FACT RELEASED BY OI - CHANGE IN DISCLOSURE POLICY

PHAROL informs about acquisition of treasury shares

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

Notice to the Market disclosed by Oi

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

Notice to the Market disclosed by Oi - Fitch Rating Review

Notice to the Market disclosed by Oi - S&P Rating Review

Material fact disclosed by Oi - Engagement of Financial advisor

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

NOTICE TO THE MARKET

2016-03-02 - PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

Notice to the Market disclosed by Oi

Notice to the Market disclosed by Oi

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

Material fact disclosed by Oi

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

Notice to the Market disclosed by Oi - Reply to BM&FBOVESPA Official Letter

NOTICE TO THE MARKET

HOME MEMBER STATE DISCLOSURE FORM

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

PHAROL INFORMS ABOUT ACQUISITION OF TREASURY SHARES

Qualified holding – RS Holding, SGPS, S.A.

DAMAGES CAUSED BY THE INVESTMENT IN DEBT INSTRUMENTS ISSUED BY ENTITIES OF ESPÍRITO SANTO GROUP – LIABILITY COURT ACTION

NOTICE TO THE MARKET

NOTICE TO THE MARKET

LIABILITY FOR DAMAGES CAUSED BY THE INVESTMENT IN DEBT INSTRUMENTS ISSUED BY ENTITIES OF ESPÍRITO SANTO GROUP

Comissão de Valores Mobiliários

Notice to the Market disclosed by Oi

Comissão de Valores Mobiliários

OI DISCLOSES THE 2015 THIRD QUARTER RESULTS

General Meeting of Shareholders of PHAROL, SGPS S.A.

Material fact disclosed by Oi

MATERIAL FACT DISCLOSED BY OI

NOTICE TO THE MARKET DISCLOSED BY OI

PHAROL’s stake in Oi after conversion of preferred shares into common shares of Oi.

Notice to The Market

Notice to the Market

Material fact disclosed by Oi

COMPLIANCE WITH THE SHAREHOLDERS’ RESOLUTION OF THE GENERAL MEETING OF JULY 31, 2015

PHAROL, SGPS S.A. informs about new contacts of Securities Markets Liaison Representative

Changes in the composition of the Board of Directors

GENERAL SHAREHOLDERS MEETING OF OI, S.A.

Qualified holding – RS Holding, SGPS, S.A.

Qualified holding – Banco Comercial Português, S.A.

OI DISCLOSES THE 2015 SECOND QUARTER RESULTS

Pharol informs about the decision of its Executive Committee

PHAROL, SGPS S.A. informs regarding new events in

PHAROL’S GENERAL MEETING OF SHAREHOLDERS

CHANGE OF PHAROL’S REGISTERED OFFICE

PHAROL, SGPS S.A. INFORMS ABOUT EVENTS RELATED TO THE IMPLEMENTATION OF OI’S NEW STRUCTURE

Management Transactions - ADDENDUM

Management Transactions

General Meeting of Shareholders

RESIGNATION OF DIRECTOR

GENERAL MEETING OF SHAREHOLDERS TO RESOLVE ON THE FILING OF A LIABILITY CLAIM AGAINST FORMER MEMBERS OF THE BOARD

QUALIFIED HOLDING– MORGAN STANLEY

Material fact disclosed by Oi

Qualified holding– Morgan Stanley

Material fact disclosed by Oi

COMMERCIAL REGISTRY OF AMENDMENTS TO THE

OI DISCLOSES CLOSING OF THE SALE OF PT PORTUGAL’S SHARES TO ALTICE

PORTUGAL TELECOM’S ANNUAL GENERAL MEETING OF SHAREHOLDERS

APPOINTMENT OF THE COMPANY’S SECRETARY

FILING OF ANNUAL REPORT ON FORM 20-F

OI DISCLOSES THE 2015 FIRST QUARTER RESULTS

PROPOSAL REGARDING ITEM SIX OF THE AGENDA

NOTICE

Material fact disclosed by Oi - Oi Announces Changes to its Management

Material fact disclosed by Oi Approval of the European Commission of the Acquisition by Altice

Qualified holding – UBS Group AG

Material fact disclosed by Oi

RESIGNATION OF DIRECTOR

PORTUGAL TELECOM INFORMS ON THE CONCLUSION OF THE

Qualified Holding and Long Position

Material facts disclosed by Oi

Material fact disclosed by Oi

Oi discloses the 2014 fourth quarter results

Newspaper Articles

Material fact disclosed by Oi

Qualified Holding and Long Position

Resignation of Director

Qualified holding

Changes in the composition of the Board of Directors

Appointment of External Auditor

Management Transaction

Material facts disclosed by Oi

Portugal Telecom, SGPS, S.A. announces the delisting of its ADSs from the New York Stock Exchange

Material fact disclosed by Oi

Qualified Holding and Long Position

Resignation of Director

Management Transaction

Qualified holding

Change in the composition of interest

Qualified Holding and Long Position

Qualified Holding and Long Position

Qualified holding– Morgan Stanley

Qualified holding– Morgan Stanley

Appointment of new representative for the relations

Portugal Telecom General Shareholder Meeting

Announcement

Announcement regarding the 12 January 2015

Portugal Telecom General Shareholder Meeting

External Auditor

Results of PriceWaterhouseCoopers Analysis

Appointment of External Auditor

ANNOUNCEMENT

Material fact disclosed by Oi

Clarification to CMVM

Qualified Holding – JPMorgan

Clarification to the Market disclosed by Oi

Report of the Board of Directors about the

Report of the Board of Directors about the

Qualified Holding – JPMorgan

Material fact disclosed by Oi

Qualified holding – UBS Group AG

Resignation as member of the Board of Directors

Material fact disclosed by Oi

Clarification to the Market disclosed by Oi

Qualified holding – Morgan Stanley

Qualified holding – Morgan Stanley

Oi discloses the 2014 third quarter results

Qualified holding

Material fact disclosed by Oi

Material fact disclosed by Oi

Preliminary announcement of a public tender offer

Material fact disclosed by Oi

Qualified holding and long position – Morgan Stanley

Qualified holding and long position – Morgan Stanley

Change regarding the composition of the Board of Directors

Clarification to the Market disclosed by Oi

Material fact disclosed by Oi

Clarification to the Market disclosed by Oi

Qualified holding

Changes regarding the composition of the Board of Directors

Material fact disclosed by Oi

Clarification to the Market disclosed by Oi

Material fact disclosed by Oi

Qualified holding

Clarification to the Market disclosed by Oi

Changes regarding the composition and organisation of the Board of Directors

Material fact disclosed by Oi

Portugal Telecom General Shareholder Meeting

Qualified holding – Morgan Stanley

Clarification of PT’s General Meeting Chairman

Qualified holding and long position – Morgan Stanley

Supplemental information to the documents relating to the consolidated financial statements for the year ended

Management Transaction

Change in the composition of interest

Qualified Holding

PT´s General Meeting of Shareholders Convened for 8 September

Resignation of Non-Executive Director

Resignation of Non-Executive Director

Management Transactions

Change in the composition of the qualified holding

PT SGPS and Oi announce agreement on the terms to proceed with the Business Combination

Material fact disclosed by Oi

Qualified Holding

MEO expands its fibre network through a sharing agreement with Vodafone

Material fact disclosed by Oi

PT and Oi reaffirm their support for the business combination

Qualified Holding

Luís Pacheco de Melo remains in office as CFO of PT SGPS

Qualified Holding

Qualified holding – Citigroup

Material fact disclosed by Oi

Additional clarifications regarding treasury applications

Resignation of Non-Executive Directors

Clarifications regarding treasury investments

Oi discloses the sale of mobile towers

S&P rating

Moody’s rating

Qualified Holding

Business combination timetable

2014.05.09 - Qualified Holding

Change in the composition of interest

Qualified Holding and Long Position

Dividend Payment

Acquisition of own shares

Qualified Holding

Qualified Holding

Closing of public offering of shares and exercise of over-allotment option

Transfer of PT Portugal shares and Substitution of Issuer of Notes

Filing of Annual Report on Form 20-F

Portugal Telecom’s Annual General Meeting of Shareholders

Oi capital increase

Qualified holding and long position – Morgan Stanley

Material Fact disclosed by Oi

Information on the prospectus of the public offering

Maximum number of shares to be issued in Oi’s offer

Information on the Underwriters of the Public Offering

Result of Oi’s General Shareholders’ Meeting and Anatel Approval

Qualified holding and long position – Morgan Stanley

Material Fact disclosed by Oi

PT’s General Meeting of Shareholders

Disclosure of CVM Resolution

Clarification of PT’s General Meeting Chairman

Qualified Holding

Results of solicitation of consents in relation to PT notes

Qualified Holding

Filing of Information Statement related to the combination of PT and Oi businesses

Qualified holding and long position – Morgan Stanley

PORTUGAL TELECOM INTERNATIONAL FINANCE B.V. ANNOUNCES THE

PORTUGAL TELECOM INTERNATIONAL FINANCE B.V. ANNOUNCES THE RESULTS OF ITS SOLICITATION OF CONSENTS IN RELATION TO NOTES

Results on liability management in connection with the transaction between PT and Oi

Long Position

Solicitation of consents by Portugal Telecom, SGPS, S.A. announcement of amendments to solicitation timetable

Additional information on the combination of PT and Oi businesses

PT and Oi announce the execution of definitive

Qualified Holding

Notice

PT's liability management in connection with the transaction between PT and Oi

MEO becomes the only PT brand for residential and mobility

PT Fixed Rate Notes 20122016

Qualified Holding