BRASIL TELECOM HOLDING CO

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Written communication about a business combination transaction (Rule 425)

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Notice of Effectiveness

Registration statement under the Securities Act of 1933 for depositary shares evidenced by American depositary receipts

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 (amendment)

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Registration statement / Annual report / Transition report for Foreign Private Issuers (amendment)

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Registration statement / Annual report / Transition report for Foreign Private Issuers

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

No description available

Tender offer/rights offering notification form

Appointment of agent for service of process and undertaking

No description available

No description available

Tender offer statement by a third party (amendment)

Tender offer statement by a third party (amendment)

No description available

Letter from the SEC

Tender offer statement by a third party

No description available

No description available

No description available

No description available

No description available

No description available

No description available

No description available

No description available

No description available

No description available

No description available

No description available

No description available

Registration statement / Annual report / Transition report for Foreign Private Issuers

Letter from the SEC

Registration statement / Annual report / Transition report for Foreign Private Issuers

Letter from the SEC

Letter from the SEC

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Registration statement / Annual report / Transition report for Foreign Private Issuers

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Registration statement / Annual report / Transition report for Foreign Private Issuers

Registration statement / Annual report / Transition report for Foreign Private Issuers

Registration statement / Annual report / Transition report for Foreign Private Issuers

Registration statement / Annual report / Transition report for Foreign Private Issuers

No description available