CTS Bitumen GmbH, based in Buch am Erlbach, in Bavaria (Germany), has been playing an important role in the development, improvement and commercialization of rubber-modified bitumen destined for road construction since 1985. The development of asphalt layer PA to the noise reducing Flüsterasphalt™️ ("whispering asphalt") is an important milestone and is now a registered trademark. As a pioneer in the technology of rubber modification, CTS Bitumen GmbH has become a leader in the field. After years of continuous research and development, CTS Bitumen has been able to introduce its latest innovation: rubber-modified bitumen granules (GRM by CTS). After having set new industry standards, this technology is now widely appreciated thanks to its effortless transportation and handling, as well as its outstanding performance.