TIM S.A. Business Summary

TIM S.A. (TIMB) is a leading Brazilian telecommunications provider that generates revenue primarily through a subscription-based model across its mobile, residential broadband, and B2B segments. The company’s core business is driven by its "3Bs" strategy (Best Network, Best Offer, Best Service) in the mobile space, complemented by its high-speed TIM UltraFibra broadband and a growing portfolio of B2B digital solutions focused on data monetization and IoT. As of February 2026, TIM is executing its 2026–2028 Industrial Plan, which prioritizes an "AI-first" operational transformation and the aggressive expansion of its 5G infrastructure to maintain its leadership in network coverage. Its primary direct competitors include Vivo (Telefónica Brasil), Claro (América Móvil), and Oi; TIM distinguishes itself as a top-tier player with the largest 5G footprint in Brazil and a disciplined focus on capital allocation and high shareholder remuneration. The leadership team is led by CEO Alberto Mario Griselli, who has served in the role since 2022 and brings an engineering background from La Sapienza University and an MBA from Columbia University. He is supported by CFO Andrea Palma Viegas Marques, a veteran with over 20 years of industry experience, and CTO Marco Di Costanzo, who oversees the company’s technological infrastructure and 5G roadmap. The board is currently undergoing a strategic transition, with Adrian Calaza—formerly CFO of parent company Telecom Italia—set to succeed Nicandro Durante as Chairman effective March 31, 2026. TIM S.A. is a subsidiary of the Telecom Italia Group, which remains its controlling shareholder, and its governance is further strengthened by a board that includes Leonardo de Carvalho Capdeville, the current CTO of the parent group.