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Operational Holding
Operational holding company Fixed-line phone, broadband and data services
Image Telecom TV Vídeo Cabo Ltda
Privately-held corporation
CTBC Multimídia Data Net S/A
Privately-held corporation
CTBC Celular S/A
Privately-held corporation
Algar Tecnologia e Consultoria S/A
Privately-held corporation
Engeset Engenharia e Serviços de Telecomunicações S/A
Privately-held corporation
Algar Mídia S/A
Privately-held corporation