Telefônica Brasil (VIV/VIVT3) Restructuring Notice

This Form 6-K details a corporate reorganization effective November 1, 2025, involving subsidiaries.

• Material Event: Telefônica Cloud Brasil incorporated its wholly-owned subsidiary, IPNet Serviços em Nuvem e Desenvolvimento de Sistemas Ltda., which was extinguished.
• Strategic Goal: Simplification of operational structures, administrative/economic benefits, cost reduction, and synergy leveraging.
• Financial Impact: The transaction was based on the book value of net assets.
• Crucially: The Incorporation res