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KT Corporation

South Korea-based telecommunications and digital infrastructure group expanding from fixed and mobile connectivity into AI infrastructure, cloud, data centers, submarine networks, and enterprise AI transformation services.

Overview

KT is one of South Korea’s major integrated telecommunications operators, providing fixed broadband, mobile communications, enterprise networking, cloud, data center, media, and digital platform services. The company traces its modern corporate structure to the establishment of the Korea Telecommunications Authority in 1981 and was fully privatized in 2002. KT is repositioning its strategy around becoming an AX Platform Company, combining telecommunications infrastructure with AI computing, data centers, enterprise AI services, cybersecurity, and global network infrastructure.

Why It Matters

KT operates communications infrastructure across one of the world’s most advanced broadband and mobile markets and is expanding its role in the infrastructure supporting AI workloads. Its strategy connects telecommunications networks, AI data centers, submarine capacity, cybersecurity, cloud platforms, and enterprise AI services.

Founded

1981 as the Korea Telecommunications Authority; renamed Korea Telecom in 1991 and KT in 2001. Privatization was completed in 2002.

Headquarters

Seongnam, Gyeonggi Province, South Korea

CEO

Kim Young-shub, Chief Executive Officer

Core Technologies

5G / Mobile Networks Fiber Broadband AI Infrastructure AI Data Centers Enterprise AI Cloud Submarine Networks Cybersecurity

Key Products / Platforms

Fixed and mobile telecommunications services; enterprise network services; KT Cloud and data center infrastructure; AI and AX transformation platforms; AI computing infrastructure; AI Edge services; cybersecurity and Zero Trust initiatives; IPTV and media platforms; international network services; submarine cable infrastructure.

Major Milestone

In July 2026, KT outlined a multi-year strategy to transform into an AX Platform Company. The plan includes approximately KRW 18 trillion in planned investment across cybersecurity, IT systems, network infrastructure, AI data centers, and submarine cable infrastructure. KT aims to secure 1 GW of AI data center capacity and more than 90 Tbps of submarine cable capacity over the next five years.

Target Markets

Telecommunications AI Infrastructure Data Centers Enterprise AI Cloud Services Subsea Security

Editorial Coverage

Converge Digest coverage focuses on KT’s telecom network investments, AI infrastructure strategy, AI data center expansion, submarine cable capacity, cloud infrastructure, enterprise AI services, cybersecurity initiatives, 5G evolution, and partnerships supporting South Korea’s digital infrastructure ecosystem.

Industry Context

KT is expanding beyond the traditional telecommunications operator model as AI workloads increase demand for computing capacity, data center infrastructure, high-capacity terrestrial and submarine networks, and enterprise AI platforms. The company’s AX strategy combines investments in core network reliability and cybersecurity with the expansion of AI data center capacity and international connectivity infrastructure.

Profile Updated

July 2026

Related Knowledge Hubs

KT • AI Infrastructure • Data Centers • Subsea • Security