AGREBET Madencilik has also demonstrated its sectoral knowledge and experience in natural sand production, and has started natural sand production activities for the needs of Istanbul with state-of-the-art investments. As in other fields of activity, it aims to raise customer satisfaction to the highest level by producing "performance regulator sand" that provides high performance in natural sand and concrete, ensuring the production of "performance concretes DURABET series concrete", which is needed by the sector, and ensuring quality continuity.