Further, Nippon Mining & Metals Group sets medium-term targets which, where appropriate, provide quantitative targets regarding energy savings, reductions in C02 emissions and final disposal of waste. These targets are evaluated on a yearly basis and revised periodically. They identified certain key obstacles, including: technological capability to extract materials from used products, collection infrastructure, and co-ordination across borders in terms of the movement of disposed articles out of Japan and achieving broad acceptance of its importance.