Sirpa Miettinen and Metso Corporation began their cooperation in 2009, and that continues. First Metso Award -prizes were created in 2011. Metso Award is Metso Corporation’s internal prize intended to give credit to projects that contribute new ideas, products or approaches. A sculpture “Tree of knowledge”, challenge trophy – branch of the Tree of Knowledge – and the miniature prizes – sprouts of the Tree of Knowledge – were published in November 10th 2011.