Munich based Callista Private Equity GmbH acquired 100% of shares in Monofrax, LLC in 2016. Monofrax LLC, based in Falconer, NY, is a leading producer of fused cast refractory materials, mainly used within the construction of furnaces for glass manufacturing and other industries. They are the sole supplier approved by the U.S, Department of Energy for the production of the K-3 refractory used for the vitrificatin of nuclear waste. The retention of 160 employees is led by General Manager William Andrews who is committed on restructuring measures to streamline the business and improve profitability. The new management team is optimistic about the future, and intends to increase employment as the business grows in 2017.