Investor Presentaiton

Enterprise Business Segment (25% of Revenue, Q1 2021) Totalplay Enterprise portfolio offers a wide range of value-added telecommunications and IT solutions to Mexican private companies and government entities Key Highlights Enterprise Portfolio ☐ Totalplay Enterprise close to 110k internet services installed with ~41k medium and large corporate customers ☐ Customer base includes 60% of the top-500 largest enterprises in Mexico WiFi Services Managed Networks Video Surveillance ☐ ~66% of revenues from private sector entities and -44% from public sector ■ Metro Ethernet rings for high-capacity broadband connections Point-to-multipoint microwave network with over 500 base stations and 1,500 sectors, servicing corporate customers located in 169 cities LAN to LAN MPLS High Internet Capacity: Symmetric and Asymmetric Totalplay® EMPRESARIAL Totalplay® 2015 Sour B "Enterprise" refers to Totalplay Empresarial business segment which covers private and publicly-listed companies and federal and state government agencies and entities. LAN denotes Local Area Network and MPLS denotes Multiprotocol Label Switching. SDN (Software Defined Networking) Cloud Solutions 11

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