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ARTERIA Networks Participates “JAKO”, Japan-Korea Submarine Optical Cable Project
~ Enhancing international telecommunication services between Japan and South Korea and supporting the advancement of next-generation communication infrastructure. ~

ARTERIA Networks Corporation (Headquarter: Minato-ku, Tokyo, Representative Director, President: Tatsuya Abe; hereinafter referred to as ARTERIA) announced its participation in the JAKO project - an international submarine optical cable system linking Japan and South Korea.

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Signing Ceremony on June 24, 2025
The second person from the left in the photo is Tatsuya Abe, Representative Director, President of ARTERIA.

About JAKO Project

The JAKO project is a submarine optical fiber cable initiative connecting Fukuoka, Japan, and Busan, South Korea. It has been developed by a consortium consisting of ARTERIA, Microsoft, Amazon Web Services (AWS), and Dreamline (South Korea), in response to the increasing international data traffic driven by the rapid expansion of AI and cloud services.
The JAKO cable system is scheduled to commence operation in Q3 2027. By facilitating high-capacity and low-latency telecommunications between Japan and South Korea, the project is expected to significantly enhance digital infrastructure throughout the East Asia region.

Enhance Regional Infrastructure through International Connectivity

As part of the JAKO project, ARTERIA is participating as the landing party on the Japanese side and is responsible for implementing the cable landing in Fukuoka, the designated landing site in Japan.

Following the scheduled commencement of operations in Q3 2027, ARTERIA will provide “DynaEther” – a service offering low-latency, high-quality dedicated lines - to meet customer demands for international connectivity between major data centers in Japan and South Korea. This service will leverage ARTERIA’s own domestic optical fiber network between Fukuoka and Osaka/Tokyo/other major cities, ensuring prompt and reliable delivery.

The JAKO project represents ARTERIA’s first participation in an international consortium with multiple global industry leaders, showcasing a significant milestone in its growth trajectory. It is also a core element of “NEXT2030”, ARTERIA’s new five-year mid-term management plan beginning in FY2025. ARTERIA is committed to fulfilling diverse customer needs by offering high-quality telecommunication services that seamlessly integrate international and domestic networks.

Moreover, the JAKO project will aid in decentralizing international submarine cable landing sites from the metropolitan areas of Tokyo and Osaka. ARTERIA is dedicated to advancing next-generation telecommunication infrastructure in collaboration with global partners.

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*LS Cable & System (South Korea) is responsible for the JAKO system’s design, procurement, and construction.

About ARTERIA

Since its founding in 1997, the company has developed a network business service leveraging its proprietary high-capacity optical fiber backbone and access lines to craft network environment suited to the corporate client needs. Additionally, it offers an internet business service delivering high-speed, stable communications via leased circuits, and a condominium internet business service, holding the largest market share in this sector in Japan through its group company, TSUNAGU NETWORK COMMUNICATIONS INC. Building on these business foundations, we continue to create new value.

Connecting New Abilities

ARTERIA will excite the world with a new heartbeat, using the networks that it has built and refined in order to contribute to the realization of a sustainable world.

1 MM Research Institute, Ltd., “Market Share Survey of All-House Condominium ISPs (As of March 31,2024)”


The Profile of ARTERIA Networks Corporation
Representative Representative Director, President: Tatsuya Abe
Address Sumitomo Fudosan Shimbashi Building, 6-9-8, Shimbashi, Minato-ku, Tokyo
Incorporation Date November 4, 1997
Shareholders Marubeni Corporation   SECOM CO., LTD.
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*The information provided in this press release is accurate as of the announcement date. Please note that content is subject to change at the time of reading.