"Vestas is the leading company in the wind turbine business, creating a new generation of more powerful and efficient wind turbines with blades utilising carbon fibres for the main structural components," said Zsolt Rumy, CEO of USA-headquartered Zoltek. "In doing so, Vestas has become the largest user of carbon fibres in the world and we are proud to be their primary supplier and of the role that we have played in supporting this development."

Vestas, headquartered in Denmark, is now Zoltek's biggest single customer, according to Rumy.