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Guyana Goldstrike Inc.

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Guyana Goldstrike Identifies Host Rock in First Three Trenches: Expands Program at Marudi North - West Extension, Marudi Gold Project, Guyana

(via TheNewswire)



June 13, 2018 / TheNewswire / Vancouver, Canada - Guyana Goldstrike Inc. (the "Company" or "Guyana Goldstrike") (TSXV: GYA, OTC: GYNAF, FSE:1ZT) is pleased to announce that the geological team has uncovered quartzite-metachert (host rock for gold mineralization) in the first three excavator trenches at the Marudi North - West Extension on its Marudi Gold Project ("Marudi" or the "Property") located in the Guiana Gold Belt, Guyana, South America. The geological team has now expanded the trenching program in this area to continue tracing the host rock and associated gold mineralization.

Peter Berdusco, President and CEO states "It is very exciting to uncover the host rock in the first three trenches at the West Extension. This is exactly what we want to identify when trenching; and it validates our program. The presence of gold at these trenches would complement the existing mineralization of the Marudi North Zone. Further, it would give the entire Marudi North area a very high exploration priority. As a result, we eagerly anticipate assay results from the first three trenches and look forward to the additional trenching."

Marudi North - West Extension Exploration

Locke Goldsmith P. Eng P. Geo., VP Exploration reports "Quartzite-metachert, the host rock, has been exposed at depths between one to four meters below surface in three separate trenches. The West Extension has become an excellent exploration target that merits further trenching. We will carefully consider the area's qualification as a drill target for a phase one drill program later this year."

About Quartzite-metachert (Host Rock) at Marudi

At the Marudi Property, all important gold mineralization discovered to date is associated with the medial "quartzite" unit of the Marudi Mountain Formation. Gold occurs within the magnetite-hematite rich quartzite and in the magnetite-silicate iron formation.

(Source: D Strickland 43-101 Technical Report, November 30, 2016)

Trenching Summary at Marudi North - West Extension (To Date)

Trench TMN-18-1

Length: 98.1 m

An outcrop of quartzite-metachert was exposed at 2.5 m depth at the start of the trench.

Trench TMN-18-2

Length: 56.4 m.

Decomposed quartzite-metachert was uncovered at 4.0 m below surface, rising to 1 m below surface at the north end of the subcrop.

Trench TMN-18-3

Length: approximately 150 m (sampling not completed)

Quartzite metachert found 1.0 m below surface near the south end.

In all trenches horizontal chip-channel samples were collected for geochemical analysis along the base of the trench walls. Duplicate samples were collected for panning.

A total of 58 samples were taken from TMN-18-1 and TMN-18-2 for geochemical analysis.

Logging, mapping and photography follow sampling.

The exploration team is extending the trenching program to the west of TMN-18-3 where alluvial gold is being mined in a creek to the south of that area.

Property Geology

Gold mineralization at Marudi is regarded as being related to iron-formation-hosted gold ("IFG") deposits that occur in other cratonic greenstone belts around the world. These deposits can be remarkably long-lived with sizeable gold production. They have a strong association between gold and iron sulfide minerals, the presence of gold bearing quartz veins and structures, the occurrence of deposits in structurally complex terranes, and the absence of lead and zinc enrichment.

Examples of some existing IFG deposits are: the Homestake Mine, Lupin Mine, and Musselwhite Mine.

The Homestake Mine is located in South Dakota USA and was the largest and deepest gold mine in North America. It has reported production of 43.9 million ounces of gold (source: https://en.wikipedia.org/wiki/Homestake_Mine_(South_Dakota) and was in production from 1878-2001.

The Lupin Mine located in Nunavut, Canada, no longer in production, produced approximately 3 million ounces of gold (source: http://www.kinross.com/news-and-investors/news-releases/press-release-details/2003/Suspension-of-Operations-at-the-Lupin-Mine/default.aspx).

The Mussellwhite mine has estimated reserves of 2.29 million ounces of gold (source: https://en.wikipedia.org/wiki/Musselwhite_mine) and is owned and operated by Goldcorp and will be in production until 2020.

Photo of Trench TMN-18-3 - Closeup of Quartzite-metachert

(host rock for gold mineralization)


Click Image To View Full Size

Historical Trenching at Marudi

Previous operators at Marudi reported 3,327.40 metres of trenching and assayed 1,069 samples with gold values assayed up to 11 g/t of gold.

(Source: D. Strickland P. Geo NI 43-101 Technical Report, November 30, 2016)

0.0.3Historical Drill Results - Marudi North Zone

0.0.4(Guyana Frontier - 2012) Source: 43-101 Technical Report D. Strickland P. Geo November 30, 2016

Hole No.

Azimuth (degrees)

Dip (degrees)

Final Depth of Hole (m)

From (m)

To (m)

Interval (m)

Gold Intercept (grams/ tonne)

MN12-133

119?

-50

163.5

9.08

18

8.92

2.95

including

9.6

12

2.4

7.45

30

37.45

7.45

0.26

159.7

163.5

3.8

0.32

MN12-134

119?

-70

97.67

12.5

30.05

17.55

4.29

including

12.5

24.5

12

5.54

30.05

39

8.95

0.3

MH12-135

290?

-60

268.5

23.26

55.5

32.24

1.8

MN12-137

115?

-55

292.5

195.13

204.94

9.81

0.78

MN12-140

140?

-55

139.5

48.97

57.16

8.19

0.31

72.5

80.5

8

1.9

including

74.5

78.5

4

3.4

MN12-141

165?

-55

110

36

42.5

8.95

0.26

60

66

6

0.3

Sampling and assaying

All samples collected during this program were delivered to Activation Laboratories Ltd. (Actlabs) located in Georgetown, Guyana for gold content by Fire Assay (FA). Actlabs is ISO 17025 accredited and/or certified to 9001: 2008. With 25+ years' experience, with full analytical laboratories that perform high quality analysis to many industries around the world.

Quality assurance / Quality control (QA/QC)

Actlabs is an ISO 9001:2008 qualified assayer that performs and makes available internal assaying controls. Certified blanks and standards are systematically used as part of Guyana Goldstrike's QA/QC program with one blank and standard inserted at every 20 sample intervals.

About the Marudi Gold Project

The Company is developing the Marudi Gold Project located in Guyana, South America, the project is unique in that it has a 20-year mining license in good standing, all-season road access, infrastructure in place, with an established mining camp serviced by employees, service buildings, and a full-time mining manager. The Property has three known gold bearing areas, specifically the alluvial areas, the saprolite, and the underlying hard-rock.

There has been 42,000 metres of historic diamond drilling (141 holes) completed on the Project by prior operators. The Company has recently completed a mineral resource estimate on the Mazoa Hill zone containing 259,100 indicated gold ounces within 4,428,000 tonnes grading 1.8 grams/tonne (g/t) and 86,200 inferred gold ounces within 1,653,000 tonnes grading 1.60 grams/tonne (g/t). There exists excellent exploration upside through the development of previously identified mineralized bedrock targets on the Project.

For information concerning the mineral resource estimate and the Project, readers are encouraged to review "Technical Report: Marudi Property Mazoa Hill Mineral Resource Estimate", a technical report prepared for the Company by Global Mineral Resource Services and is available at http://www.guyanagoldstrike.com/images/pdf/43101_Report_Guyana_Goldstrike_Mazoa_Hill_Zone_Jan_2018.pdf and under the Company's profile on SEDAR www.sedar.com.

About Guyana

The Republic of Guyana is located in South America between Venezuela and Suriname. The country is English speaking and under British Common Law with a democratically-elected government. It has an established mining act and a rich history of gold production. In 2016, 690,000 ounces of gold was produced by operators mining in the country. The Fraser Institute's 2016 Annual Survey of Mining listed Guyana as the third best mining jurisdiction with regards to investment attractiveness in the Latin America and Caribbean Basin sub-group. The Guiana Shield is the geographic gold-hosting region, and is world-recognized as a premier gold region that is highly prospective, under-explored and has geological continuity with West Africa.* In 2016, two mines in Guyana declared the commencement of commercial production: the Aurora deposit (Guyana Goldfields) and the Karouni deposit (Troy Resources).

* Independent Technical and Environmental Review Karouni Gold Project - Guyana, Behre Dolbear Australia Pty Ltd, April 29, 2016

Qualified Person

Locke Goldsmith, M.Sc., P. Eng, P. Geo, Chief Geologist and Exploration Manager for the Company, is a Qualified Person in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects. Mr. Goldsmith has reviewed and approved the scientific and technical content of this news release.

WWW.GUYANAGOLDSTRIKE.COM

On behalf of the Board of Directors of

GUYANA GOLDSTRIKE INC.

Peter Berdusco

President and Chief Executive Officer

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.

This news release may contain certain "Forward-Looking Statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities laws. When used in this news release, the words "anticipate", "believe", "estimate", "expect", "target, "plan", "forecast", "may", "schedule" and other similar words or expressions identify forward-looking statements or information. These forward-looking statements or information may relate to future prices of commodities, accuracy of mineral or resource exploration activity, reserves or resources, regulatory or government requirements or approvals, the reliability of third party information, continued access to mineral properties or infrastructure, fluctuations in the market for gold, changes in exploration costs and government regulation in Guyana, status of artisanal mining activities and associated rights, and other factors or information. Such statements represent the Company's current views with respect to future events and are necessarily based upon a number of assumptions and estimates that, while considered reasonable by the Company, are inherently subject to significant business, economic, competitive, political and social risks, contingencies and uncertainties. Many factors, both known and unknown, could cause results, performance or achievements to be materially different from the results, performance or achievements that are or may be expressed or implied by such forward-looking statements. The Company does not intend, and does not assume any obligation, to update these forward-looking statements or information to reflect changes in assumptions or changes in circumstances or any other events affections such statements and information other than as required by applicable laws, rules and regulations.

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