© 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. Briefing on MHI’s CO 2 Capture Technology for Power Applications September 12, 2016

© 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. 2 MHI – Four Business Domains Energy & Environment Commercial Aviation & Transportation Systems Integrated Defense & Space Systems Machinery, Equipment & Infrastructure Providing optimal solutions toward the creation and improvement of social infrastructure in the energy and environmental areas Supplying advanced transportation systems and services for land, sea and air applications Providing integrated defense systems encom passing land, sea, air and space applications as well as space-related equipment and services Furnishing highly efficient products and services to support key industries and areas Nuclear Energy Systems Division Mitsubishi Heavy Industries Marine Machinery & Engine Co., Ltd. Chemical Plant & Infrastructure Division Renewable Energy Business Division Company-wide EPC Support Functions Power Systems Division MH Power Systems Co., Ltd. Shipbuilding & Ocean Development Division Land Transportation Systems Division Commercial Airplanes Division 787 Division Commercial Aero Engines Department Mitsubishi Aircraft Corporation Machinery & Steel Infrastructure Systems (excludes transportation systems) General Machinery & Special Vehicles (excludes special vehicles) Air-Conditioning & Refrigeration Systems Machine Tool Aircraft Division Guidance & Propulsion Division Space Systems Division Special Vehicle DivisionNaval Ship Division Maritime & Space Systems Department DME Engine Geothermal Power Plant Bridges & Steel Structures

R&D Strength & Experience 3 25 years of R&D → KM CDR Process ® and KS-1 Solvent (A) TPD Nanko Osaka pilot plant - natural gas flue gas (B) TPD Hiroshima pilot plant - coal fired flue gas (C) TPD Matsushima pilot - coal fired flue gas (D) TPD Plant Barry demo plant (~25MW) – coal fired flue gas A 2.0 TPD Nanko Pilot Plant (Kansai Electric Power Co.) 1.0 TPD Hiroshima Pilot Plant (MHI R&D Center) 10 TPD Matsushima Pilot Plant (J-Power) 500 TPD Barry Demonstration Plant (Southern Company) © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. BC D

2006 India (Aonla) 450 Mt/d 2009 India (Kakinada) 450 Mt/d Pakistan 340 Mt/d India (Vijaipur) 450 Mt/d 2011 U.S.A (SoCo) 500 Mt/d U.S.A (WA Parish) 4,776 Mt/d Qatar 500 Mt/d 2009 Bahrain 450 Mt/d UAE 400 Mt/d India (Phulpur) 450 Mt/d Japan 330 Mt/d 2010 Vietnam 240 Mt/d Malaysia 210 Mt/d Plants under construction Plants under operation 4 * Rendering KM CDR Process ® Experience © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved Japan 283 Mt/d 14

5 KM CDR Process ® Overview © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. Post Combustion - applicable to either coal or gas turbine flue gases

ItemDescription Plant locationMobile County, AL Plant owner Alabama Power Plant Barry ProcessKM CDR Process ® Absorption liquid KS-1 TM solvent Plant scale25 MW equivalent Flue gas flowrate 116,800 Nm 3 /h CO 2 concentration 10.1 mol%-wet CO 2 capture capacity 500 metric ton/day (150,000 ton/year) CO 2 capture ratio 90 percent 6 Demonstration of the KM CDR process on coal flue gas and long term sequestration. Absorber Regenerator CO 2 compression & Dehydration unit Flue gas inlet Flue Gas Quencher © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. Plant Barry Project

 Project owner: Petra Nova, a partnership between NRG Energy, Inc. and JX Nippon Oil & Gas Exploration Corporation  Location ： NRG WA Parish Power Plant in Thompsons, TX.  Flue gas source: Unit MW coal-fired boiler  CO 2 concentration: 11.5%  CO 2 capture capacity ： 4,776 metric ton per day (240MW equivalent)  CO 2 capture ratio ： 90%  CO 2 Use : CO 2 Enhanced Oil Recovery (EOR)  Pipeline : 12inch diameter, Approximately 80 miles  Injection Site: West Ranch Oil Field in Jackson County, TX  Start-up ： Fall, Absorber Regenerator CO 2 Compressor Cooling Tower Flue Gas Quencher World’s largest CO 2 capture plant from a coal-fired power plant [Reference] U.S. Department of Energy “W.A. Parish Post-Combustion CO2 Capture and Sequestration Project Final Environmental Impact Statement Volume I” (Feb, 2013), DOE/EIS-0473 © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. Petra Nova Project

8 Compressed CO 2 will be delivered by 80 mile pipeline to the West Ranch Oil Field. 1.4M metric tons of CO 2 will be annually injected into the West Ranch formation. Expected oil production will increase from 500 barrels/day to ~15,000 barrels/day. © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. Petra Nova Project – CO 2 to EOR

9 Absorber Module Lifting © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. Petra Nova Project

10 Site Photo © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved. Petra Nova Project Cooling Tower Regenerator Absorber Flue Gas Quencher Main pipe rack Amine Storage Tanks

11 © 2016 MITSUBISHI HEAVY INDUSTRIES, LTD. All Rights Reserved.