Founder — Tunnelling Veteran, Japan

Kakita Naoki

Two decades of TBM drives across Japan, Hong Kong, Indonesia and Singapore — now founding Bangladesh's next tunnelling company.

About

Kakita-san's career began on Japan's public works — service tunnels, sewer pipelines and water-supply tunnels — where he absorbed the meticulous planning and construction culture that defines Japanese engineering. Those early drives in Hiroshima, Niigata and Yamaguchi taught the fundamentals that no classroom can: ground behaviour, machine rhythm, and the discipline of doing small things perfectly, every ring.

From Japan his career expanded across Asia. He drove Herrenknecht machines on Hong Kong's Express Rail Link, helped deliver Jakarta's first metro on packages CP201 and CP202, and worked multiple contracts of Singapore's Thomson–East Coast Line on STEC and Kawasaki machines.

In 2023, he founded Zen Tunnel Engineering together with directors Jasim Uddin and Mohammad Zahirul Islam — colleagues from a dozen underground projects — to bring that combined experience to the Dhaka Metro's coming underground phase, and to tunnelling contracts worldwide.

Career Highlights

  • Singapore
    Thomson–East Coast Line — T316 / T310
    STEC EPB TBM drives through the city centre.
  • Singapore
    Thomson–East Coast Line — T202
    Kawasaki TBM running-tunnel drives.
  • Indonesia
    Jakarta MRT — CP202 / CP201
    JIMT and Kawasaki EPB machines beneath one of the world's most congested capitals.
  • Hong Kong
    Express Rail Link — XRL 825
    Herrenknecht TBM drives for the territory's high-speed rail connection.
  • Japan
    Hiroshima Common Service Tunnel
    Urban utility tunnel construction.
  • Japan
    Niigata Airport Sewer Pipeline
    Sewer pipeline tunnel construction.
  • Japan
    Numakuma Sewerage Main
    Main sewerage tunnel construction.
  • Japan
    Ozegawa Tunnel, Yamaguchi
    Industrial and potable water supply tunnel.
Machine Platforms
STEC EPB Kawasaki EPB / Slurry Herrenknecht TBM JIMT EPB

Meet the rest of the team

Jasim Uddin
Jasim Uddin
Director — Mechanical Superintendent
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ZI
Mohammad Zahirul Islam
Director — Tunnel Operations
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