 The Order Marks the 1st Industrial Microturbine Installation in Saudi Arabia VAN NUYS, CA ACCESSWIRE March 31, 2021 Capstone Turbine Corporation NASDAQ:CPST, the worlds leading clean technology manufacturer of microturbine energy systems, announced today that it has received an order from Radian Oil and Gas Services, an engineering services company, for a low emission Capstone C400 Signature Series microturbine system C400S to be installed at an aluminum smelting operation in Saudi Arabia, owned and operated by Maaden Aluminum. The order was secured by Capstones internal solution sales team and is expected to be commissioned in June 2021. 