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4th Annual ROTH Solar Tour Shanghai | April 18-21, 2017 ROTH Capital Partners, Philip Shen, Cleantech Senior Research Analyst, invites you to join us on our 4th Annual China Solar Tour scheduled for April 18-21, 2017. This trip will primarily comprise a multi-day booth tour during the SNEC PV Power Expo, which will feature nearly 2,000 companies and exhibitors, with the option of visiting some companies as well. We believe this tour will enable you to efficiently meet companies throughout the solar value chain – polysilicon, wafer, cell, module, equipment, downstream developers, BOS/Inverter, private companies, and industry experts – in one of the most important solar markets in the world. Preliminary Agenda April 17 | Monday INVITED COMPANIES - Arrive in Shanghai Amtech Systems, Inc. (Nasdaq: ASYS) April 18 | Tuesday Canadian Solar Inc. (Nasdaq: CSIQ) -10:30am - Tour of Huawei's Shanghai R&D Center and Global Test China Singyes Solar Technologies Holdings (HK: 0750) Daqo New Energy Corp. (NYSE: DQ) and Compliance Center – Resi optimizer & inverter (US & EU versions) GCL-Poly Energy Holdings Limited (HK: 3800) were designed here Co., Ltd. (Nasdaq: HQCL) - Welcome Reception Hareon Solar (SH: 600401) Huawei Technologies Co. Ltd. (Private) April 19 | Wednesday JA Solar Holdings (Nasdaq: JASO) - SNEC PV Power Expo 2017 | Booth Tours (NYSE: JKS) Longi Green Energy Technology Co., Ltd., (SH:601012) - Roundtable Dinner with Featured Guests and Companies ReneSola Ltd (NYSE: SOL) Risen Energy Co., Ltd (SZ: 300118) April 20 | Thursday Shanghai Chint Power Systems (Private) - SNEC PV Power Expo 2017 | Booth Tours Sungrow Power Supply Co., Ltd (SZ: 300274) - Investor Dinner with Solar Company Management Tebian Electric Apparatus Stock Co., Ltd. (SH: 600089)

April 21 | Friday Subject to Change 3/28/17 - Tour of TPIC's wind blade manufacturing facility in Dafeng

SNEC To attend SNEC PV Power Expo attendees must register themselves at http://www.snec.org.cn/default.aspx?lang=en.

Travel Information You will need to secure a Chinese visa at least two weeks prior to U.S. departure. To be eligible for a Chinese visa your passport must be valid for more than six months and include a blank visa page.

Space is Limited RSVP SPONSORS Registration is open to ROTH clients only. For more information and hotel details, please contact your ROTH sales professional at 1.800.933.6830 or e-mail [email protected]

This is not an offer or solicitation of the securities herein.