PRESENTING COMPANIES

CLEANTECH & INDUSTRIAL GROWTH TRACK

By Invitation Only.

Please email or contact your ROTH representative at 800.933.6830.registration@roth.com

Advanced Emissions Solutions (ADES) IEC Electronics Corp (IEC)Aegion Corporation (AEGN) ITM Power Plc (AIM:ITM)Ameresco, Inc. (AMRC) JA Solar Holdings Co., Ltd. (JASO)American States Water Co (AWR) JinkoSolar Holding Co., Ltd. (JKS)American Superconductor (AMSC) Leclanche SA (SWX:LECN)Amprius (PRIVATE) LightPath Technologies, Inc. (LPTH)Amtech Systems, Inc. (ASYS) Limbach Holdings, Inc. (LMB)Aqua Metals, Inc. (AQMS) Lumenpulse Inc. (LMP)ASV LLC (PRIVATE) Lydall, Inc. (LDL)ATN International Inc (ATNI) Manitex International, Inc. (MNTX)Azure Power Global Limited (AZRE) Maxwell Technologies, Inc. (MXWL)Ballard Power Systems Inc. (BLDP) Midwest Energy Emissions Bel Fuse, Inc. (BELFB) (OTCQB:MEEC)BioAmber Inc. (BIOA) Motorcar Parts of America (MPAA)Blue Bird Corporation (BLBD) Nextek Power Systems(PRIVATE)Broadwind Energy, Inc. (BWEN) Ocean Power Technologies(OPTT)Cadiz Inc (CDZI) Organica Water (PRIVATE)Calgon Carbon Corporation (CCC) Origin Agritech Ltd. (SEED)Capstone Turbine Corp. (CPST) Orion Energy Systems, Inc. (OESX)CECO Environmental Corp. (CECE) Ormat Technologies Inc. (ORA)Cemtrex Inc (CETX) Pacific Ethanol, Inc. (PEIX)Clean Diesel Technologies Inc. (CDTI) Perma-Fix Environmental (PESI)Columbus McKinnon (CMCO) Phononic (PRIVATE)Consolidated Water Co. Ltd. (CWCO) Pioneer Power Solutions, Inc. (PPSI)Cooper-Standard Holdings Inc. (CPS) Polar Power Inc (POLA)Crius Energy Trust (TSX:KWH.UN) Primus Power (PRIVATE)CTS Corporation (CTS) Proterra (PRIVATE)Daqo New Energy Corp. (DQ) Pyxis Tankers Inc (PXS)Darling Ingredients Inc. (DAR) Quest Resource Holding (QRHC)DMC Global (BOOM) Renewable Energy Group (REGI)Ducommun Inc. (DCO) Research Frontiers Inc. (REFR)Electrovaya Inc. (TSX:EFL) Reverse Ionizer (PRIVATE)Elio Motors Inc (OTCQX:ELIO) Revolution Lighting Tech (RVLT)Emefcy Group Ltd (ASX:EMC) RGS Energy (RGSE)Energy Focus Inc (EFOI) Rubicon (PRIVATE)Enovix (PRIVATE) S&W Seed Company (SANW)Enphase Energy, Inc. (ENPH) Sevcon Inc (SEV)EnSync Inc (ESNC) Silver Spring Networks, Inc. (SSNI)Eocell (PRIVATE) Sino EV (PRIVATE)EQ Research (EQ) SolarEdge Technologies(SEDG)Fluidic Energy (PRIVATE) Spartan Motors Inc. (SPAR)FuelCell Energy Inc. (FCEL) Sunnova (PRIVATE)Gentherm Incorporated (THRM) Sunworks, Inc. (SUNW)Gevo, Inc. (GEVO)* Tecogen Inc. (TGEN)GlassPoint (PRIVATE) Tetra Tech, Inc. (TTEK)Global Water Resources, Inc. (GWRS) TFS Corporation Limited (ASX:TFC)Green Plains Inc. (GPRE) TPI Composites, Inc. (TPIC)*GreenPower Motor (GPV) Transcat, Inc. (TRNS)GSE Systems, Inc. (GVP) TriMas Corporation (TRS)H2O Innovation Inc. (TSXV:HEO) U.S. Geothermal Inc. (HTM)Hannon Armstrong Sustainable Unique Fabricating, Inc. (UFAB)Infrastructure Capital (HASI) Uniroyal Global Engineered Hanwha Q CELLS Co., Ltd. (HQCL) (OTCQB:UNIR)Heritage-Crystal Clean, Inc (HCCI) Vertex Energy, Inc. (VTNR)Highpower International, Inc. (HPJ) Vestas Wind Systems (CPH:VWS)Horizon Global Corporation (HZN) VivoPower International PLC (VVPR)Huawei (PRIVATE) Willdan Group, Inc. (WLDN)Hudson Technologies Inc. (HDSN) Yield10 Bioscience (YTEN)Hydrogenics Corporation (HYGS)Ideal Power, Inc. (IPWR)

Subject to Change | as of 3.7.17

888 San Clemente Drive Newport Beach, CA 92660 800.678.9147 www.roth.com Member SIPC/FINRA

Please join ROTH for its annual three-day conference – one of the largest of its kind. The ROTH conference brings together executives from hundreds of growth companies and is designed to provide investors with a unique opportunity to gain insight into small and mid-cap growth companies across a variety of sectors, including , , , , ,

, .

We combine company presentations, Q&A sessions, expert panels and management one-on-one meetings to provide our institutional clients with extensive interaction with senior management to gain in-depth insights into each company.

ROTH Senior Research Analysts, are pleased to feature a presentation track dedicated to:

This track will include an Energy Storage Roundtable, with select energy storage companies, Amprius, Fluidic Energy, Enovix, Primus Power, SinoEV/Octillion. Management from each company will give a brief company introduction, then Craig Irwin will moderate Q&A including questions from the audience. Subjects covered will include

Solar Roundtable, featuring Abby Hopper, President and CEO of the Solar Energy Industries Association (SEIA). This multi-day track will include presentations from over private & public domestic, as well as international companies in key sub-sectors including

Investors will have the opportunity to attend company presentations and meet one-on-one with

senior management teams to gain deeper insight and information.

Business Services Cleantech/Solar & Industrial Growth Consumer Healthcare Mining & MineralsOil & Gas and Technology Internet & Media

Craig Irwin, Matt Koranda, Philip Shen and Gerry Sweeney,

CLEANTECH & INDUSTRIAL GROWTH

advanced materials and silicon anodes, new manufacturing technology, low cost leadership, and emerging business models.

100Advanced Lighting, Alternative Fuels, Biofuels / Agribusiness, Energy Efficiency, Energy Storage,

Environmental Infrastructure & Services, Fuel Cells, New Power Infrastructure and Solar.

This track will also include a

Track Sponsor

The Blueshirt Group