Exhibit 99.1


ClearSign Combustion Corporation [CLIR]

Q1 2019 Earnings Conference Call

Wednesday, May 8, 2019, 5:00 PM ET


Company Participants:

Matthew Selinger; Investor Relations

Rob Hoffman; Chairman of the Board

Jim Deller; Chief Executive Officer

Brian Fike; Chief Financial Officer


Analysts and Private Investors:

John Reynolds; Private Investor

Marshall Crowe, Private Investor

Several Unidentified Shareholders

Robert Kecseg; Las Colinas Capital Management

Stace Williams, Private Investor




Operator: Good afternoon, and welcome to the ClearSign Combustion Corporation's First-Quarter 2019 Conference Call. (Operator Instructions) Please note this event is being recorded.


I would now like to turn the conference over to Matthew Selinger, Investor Relations. Please go ahead.


Matthew Selinger: Thank you, Operator, and welcome, everyone, to the ClearSign Combustion Corporation First-Quarter 2019 Results Conference Call.


During this conference call, the Company will make forward-looking statements. We caution you that any statement that is not a statement of historical fact is a forward-looking statement. This includes remarks about the Company's projections, expectations, plans, beliefs and prospects. These statements are based on judgments and analysis as of the date of this conference call, and are subject to numerous important risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. The risks and uncertainties associated with the forward-looking statements made in this conference call include, but are not limited to, whether field testing and sales of ClearSign's products will be successfully completed; whether ClearSign will be successful in expanding the market for its products; and other risks that are described in ClearSign's public periodic filings with the SEC, including the discussion in the Risk Factors section of the 2018 Annual Report on the Form 10-K. Investors or potential investors should read these risks. ClearSign assumes no responsibility to update these forward-looking statements to reflect future events or actual outcomes, and does not intend to do so.


The following information was filed by Clearsign Combustion Corp (CLIR) on Monday, May 13, 2019 as an 8K 2.02 statement, which is an earnings press release pertaining to results of operations and financial condition. It may be helpful to assess the quality of management by comparing the information in the press release to the information in the accompanying 10-Q Quarterly Report statement of earnings and operation as management may choose to highlight particular information in the press release.

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