We promote the efficient use of resources by reusing and recycling materials. Our goal is to keep our waste recycling rate at over 95%. Particularly where construction waste is concerned, we achieve a very high recycling rate due to an extensive re-use of materials. With regard to our other waste, especially municipal waste, we will also be increasing the scope of our waste management in the next few years. The new strategy for disposing of mixed municipal waste, which aims to recycle as much of the recyclable material contained therein, is showing signs of success. In addition, with the redesign no. 87, especially of rolling stock, we are extending the life cycle of our production equipment, using recycled materials and continuously optimizing our material cycles. By using innovative 3D printing processes no. 149, we manufacture specific replacement parts in-house to reduce the consumption of raw materials in maintenance.