Kakita Naoki learned tunnelling on Japan's public works, then carried it across Asia — Hong Kong's high-speed rail, Jakarta's first metro, Singapore's newest lines. Jasim Uddin spent twenty-five years keeping the machines alive, from apprentice welder to mechanical superintendent. Mohammad Zahirul Islam drove tunnels under Singapore for two decades, on more machine platforms than most engineers ever see.
They met the way tunnellers do: on shift, underground, across a dozen projects. In 2023 they decided the next tunnels they built together would be their own company's — and that the company would belong to the country whose underground era is about to begin.
Zen Tunnel Engineering is that company: Japanese discipline, Singaporean standards, Bangladeshi ambition.
