About Cosmo Koki co., ltd

Cosmo Koki co., ltd (Cosmo Koki) was founded in 1959 and has achieved its fame as a pioneer of “work under pressure”. We commenced exports in 1962, and our first project abroad was the hot tapping on a crude oil pipeline in Iran. Since then, we have been providing overseas customers with our cutting-edge products for more than 50 years.

In 2005, our “inserting” of DN 2600mm was certified by Guinness World Records as the world’s largest valve inserting work done without shutting water supply.

With the best technologies represented by this inserting method, we have succeeded in earning the trust from customers and been holding the largest share in Japan for last 25 years.

We are currently promoting overseas business centering on Asia and looking forward to meeting various demands from customers across the globe.