Leader in the construction system in BTCS, OHEL International aims to give the opportunity to each family to afford an economic, ecological and sustainable habitat, thus meeting the challenge of housing in Africa and in particular in Côte d'Ivoire . This action is aimed at both the national and international chessboard. It is : Allow families to reduce the cost of construction compared to what is done, realizing 25% savings on major works. Indeed, the raw material (the ground) for the manufacture of the blocks is available locally. In addition, the assembly of BTCS blocks requires little cement and can significantly reduce the amount of concrete to be used for stiffening. Give the possibility to each family to have a roof; Promote ecological, resilient and sustainable habitats.