Press Release: May 31, 2016

Diamond WTG Engineering & Services, Inc. Secures Long Term Maintenance & Services Agreement for Century and Intrepid Wind Farms

(Newport Beach, CA – May 31, 2016) Diamond WTG Engineering & Services, Inc., a group company of Mitsubishi Heavy Industries, Inc., has signed a five-year agreement with MidAmerican Energy Company to provide state-of-the-art service support for the 50 units of one megawatt (MWT-1000A) wind turbines at MidAmerican’s Century and Intrepid Wind Projects, in Hamilton and Buena Vista Counties, Iowa.