Circuform aims to minimise the use of expensive new raw materials and to maximise reuse. It relaunched design by Ineke Hans from 2011: REX. The design has constructively been worked out as intended. The injection molds are re-engineered for recycled material (PA6), the chair is sustainable and fully recyclable. With REX a network of deposit stations is introduced where chairs can be brought back for a guaranteed € 20 refund. Returned chairs are checked, cleaned, repaired if necessary and re-sold, again with a deposit. Broken chairs are shredded into valuable raw material for new production.