apartment Corporate Profile
About Us
About Us
Corporate Profile
KT Japan
KT Japan is the Japanese subsidiary of KT, Korea's largest telecommunications company. KT, the leading provider of ultra-high-speed communication services and IT solutions in Korea, is expanding globally across five continents with diverse information and communication services. Since its establishment in 1999, KT Japan has been supporting business exchanges between Japan and Korea based on advanced IT technology.
Business Areas
Through KT Japan's six business domains, we provide communication and IT solutions that bridge Japan and Korea.
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Mitsubishi Electric Information Network Corporation
Nippon Telegraph and Telephone East Corporation
Nippon Telegraph and Telephone West Corporation
SoftBank Corp.
Colt Technology Services Co., Ltd.
NTT Communications Corporation
KDDI Corporation
Mitsubishi Electric Information Network Corporation
Nippon Telegraph and Telephone East Corporation
Nippon Telegraph and Telephone West Corporation
News
View All News 2026/4/15 Service Studying in Korea? Here's why KT's Welcome 5G plan is worth a look arrow_forward 2025/8/7 Campaign KT Japan fully supports your Korea trip! Launching 5 exclusive benefits for 'Korea eSIM / SIM Card' purchasers arrow_forward 2025/1/16 Campaign Launching discount coupons for Korea travel for Korea eSIM/SIM card customers arrow_forward 2024/9/1 Info Notice of Head Office Relocation arrow_forward 2018/2/16 Info Notice Regarding Absorption-Type Corporate Split arrow_forward
Corporate Data
Company Name
KT Japan Co., Ltd.
Established
March 25, 1999
Shareholder
KT 100%
Representative
Representative Director: Park Chanbeom
Capital
83,550,000 JPY
Address
3F Kokuryuu Shiba-koen Bldg. West Wing, 2-6-15 Shiba-koen, Minato-ku, Tokyo 105-0011
TEL / FAX
03-6432-4532 / 03-6432-4536
Business Activities
International leased lines, international IP-VPN, IP-Transit and international data communication services (KT Japan Network)Enterprise cloud connectivity and NaaS solutions (KT Japan x Epsilon)MVNO business (tt mobile)Korea SIM sales business (Korea SIM Business)Consulting on telecommunications and IT solutions (IT Support)IP character business (IP Business)
KT Headquarters Overview
Founded: December 1981
Revenue
26.431 trillion KRW
(FY2024)
Employees
14,419
(2024)
Listed Markets
Korea, New York, London
Access
Access from Nearest Stations
train
Toei Mita Line "Shiba-koen Station"
Exit A3, 1-minute walk
train
Toei Oedo Line / Asakusa Line "Daimon Station"
Exit A3/A6, 5-minute walk
directions_walk
JR Yamanote Line / Keihin-Tohoku Line "Hamamatsucho Station"
South Exit, 8-minute walk