Located in Etalans in the east of France, Vieille Matériaux was founded in 1963 by René Vieille. Currently headed by his grandson, Sebastien Vieille, this family-owned company has been specializing in the manufacture and trading of precast concrete products for more than 60 years. Recognized throughout its area for the quality of its products and its ability to innovate, Vieille Matériaux achieved a resounding success with the launch of its insulating blocks called “NRJ block” and their high thermal and acoustic performance. Vieille Materiaux is continuing to grow and has expanded its product range with the manufacture of hemp blocks called “Biosys”. This is a special building solution with a globally unique product, mechanically assembled when it is dry, with a high-precision vertical and horizontal interlocking system allowing fast and simple use.