S-T was born in 2001 to face the necessity of using special technics in networks creations.

In fact, cities, roads or simply wide reasons constraints do not allow the use of traditionnals tehnics.

Thus, we can nowadays restain 3 big major interest  to trenchless technics which are:

Tecnically : to pass where other technology are not able to.

Economically : The control of yours directs, indirect, and hires cost.

Ecologically : ground and air immunity, and also minimal impact in the closer area of the workplace.