TriStar Completes Step-Out Drilling at Castelo de Sonhos and Begins Infill Drilling

Scottsdale, Az, TriStar Gold Inc. (the “Company” or “TriStar”) has now received all assay results from the step-out holes in the Esperança South and Esperança Center areas of the Castelo de Sonhos gold project. These assays confirm that gold mineralization extends well beyond the resource area defined by the Company in 2014.

The significant intervals for all the drill holes completed in Esperança South (all previously disclosed) are shown in Table 1, and for Esperança Center (none previously disclosed) in Table 2. Not included in these tables are: CSH-16-148, which was abandoned at 78m with rods stuck in the hole and redrilled as CSH-16-150; and CSH-16-153 and CSH-16-155, which did not contain any significant intervals exceeding 0.6 g/t.

Mr. Nick Appleyard, TriStar’s President and CEO, commented: “The recent drilling has supported our view that the deposit has a strike length considerably longer than was apparent at the time of the 2014 resource, and allows us to prioritize the Esperança South extension as the first target for expanding the resource. We will begin RC drilling next week to fill in the gaps between these long step-out holes so that we can update the resource for the preliminary economic assessment later this year.”

Table 1. Significant gold intervals from holes completed in Esperança South in 2016. Drill holes were drilled towards an azimuth of 140 degrees (except Hole CSH-16-151, which has an azimuth of 90 degrees), with a dip of 55 degrees.  The downhole intersections are approximately true width of the mineralization.

Table 2. Significant gold intervals from holes completed in Esperança Center in 2016-2017. Drill holes were drilled perpendicular to mineralization, at a dip of 60 degrees, making the downhole intersections approximately the true width of mineralization. CSH-16-152 was drilled with an azimuth of 90°, and CSH-16-154 with an azimuth of 25°.

Locations of the drill holes are shown in Figures 1 and 2. The step-out holes on the southern extension of Esperança South (Figure 1) all contain significant intervals and extend the strike length by a least two kilometers. On the northern extension of Esperança Center (Figure 2), the furthest step-out hole contains one significant interval; but two other holes drilled on the footwall side of the conglomerate band show only weak gold mineralization, none of which reaches 0.6 g/t. Detailed definition of the edges of strong mineralization in this area will come from infill drilling.

Figure 1. The southwestern limb of the Castelo de Sonhos deposit, showing the footprint of the 2014 resource estimate in blue, pre-2016 drill holes in light blue, new drill holes with significant intervals in red, and with no significant intervals in green.

Figure 2. The Esperança Center portion of the Castelo de Sonhos deposit, showing the footprint of the 2014 resource estimate in blue, pre-2016 drill holes in light blue, new drill holes with significant intervals in red, and with no significant intervals in green.

Sample analysis procedures and QA/QC protocols

Sample preparation and analytical work for the Castelo de Sonhos drilling program were carried out by SGS Geosol in Parauapebas, Pará State (sample preparation) and Belo Horizonte, Minas Gerais (analysis), an ISO 9001:2008 and 14001:2004 certified laboratory. Analysis was by 50g fire assay.  As part of TriStar´s QA/QC protocol, standard samples and blanks were inserted into the sample processing stream at a rate of one per 10 samples. Duplicate and alternate laboratory check samples also form part of this sampling protocol.

TriStar's Vice-President, R. Mohan Srivastava (P.Geo.), is the QP for this press release and has prepared or supervised the preparation of the scientific or technical information in this press release and approves its publication.

About TriStar:

TriStar Gold is an exploration and development company focused on precious metals properties in the Americas that have potential to become significant producing mines. The Company’s current flagship property is Castelo de Sonhos in Pará State, Brazil. The Company’s shares are listed on the TSX Venture Exchange under the symbol TSG. Further information is available at www.tristargold.com.

For further information, please contact:

TriStar Gold Inc.
Nick Appleyard
President and CEO
480-794-1244
moc.dlogratsirt@ofni

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein.

Forward-Looking Statements

Certain statements contained in this press release may constitute forward-looking statements under Canadian securities legislation which are not historical facts and are made pursuant to the "safe harbour" provisions under the United States Private Securities Litigation Reform Act of 1995. Generally, forward-looking information can be identified by the use of forward-looking terminology such as “expects” or “it is expected”, or variations of such words and phrases or statements that certain actions, events or results “will” occur. Forward looking statements in this press release include, the scope and success of the planned exploration program at the Castelo de Sonhos project and the Company's opinion that it has clear title to the Castelo de Sonhos property Such forward-looking statements are based upon the Company's reasonable expectations and business plan at the date hereof, which are subject to change depending on economic, political and competitive circumstances and contingencies. Readers are cautioned that such forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause a change in such assumptions and the actual outcomes and estimates to be materially different from those estimated or anticipated future results, achievements or position expressed or implied by those forward-looking statements. Risks, uncertainties and other factors that could cause the Company's plans to change include changes in demand for and price of gold and other commodities (such as fuel and electricity) and currencies; changes or disruptions in the securities markets; legislative, political or economic developments in Brazil; the need to obtain permits and comply with laws and regulations and other regulatory requirements; the possibility that actual results of work may differ from projections/expectations or may not realize the perceived potential of the Company’s projects; risks of accidents, equipment breakdowns and labour disputes or other unanticipated difficulties or interruptions; the possibility of cost overruns or unanticipated expenses in development programs; operating or technical difficulties in connection with exploration, mining or development activities; the speculative nature of gold exploration and development, including the risks of diminishing quantities of grades of reserves and resources; and the risks involved in the exploration, development and mining business. Although management of the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. The Company disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as required by applicable securities laws.