Mainmark's 'Teratech Method' Registered as New Technology by Tokyo Metropolitan Government

Mainmark Co., Ltd. (Headquarters: Edogawa-ku, Tokyo; Representative Director: Futoshi Kawaguchi) announced that its subsidence correction and void filling technology, 'Teratech Method,' has been officially registered in the Tokyo Metropolitan Government's New Technology Information Database. With this registration, the Teratech Method is recognized as a technology that contributes to the sophistication and efficiency of infrastructure maintenance promoted by the Tokyo Metropolitan Government, expanding its potential for use in public works within the city. The Teratech Method is a construction technique that injects high-durability special urethane resin into the ground to precisely correct levels and fill voids caused by the settlement of buildings or structures. Due to its non-destructive nature, it eliminates the need for large-scale cutting or excavation of pavement, allowing for a reduction in traffic restriction time by approximately 59%. It also performs ground strengthening and void filling simultaneously and can be used on narrow roads. As of May 2026, it has a track record of over 4,900 projects in Japan.