Mr. Peter Berdusco reports

GUYANA GOLDSTRIKE COMPLETES GEOPHYSICAL SURVEY; HOSTS SITE VISIT; MARUDI GOLD PROJECT, GUYANA

Guyana Goldstrike Inc. has completed a helicopter-borne magnetic and radiometric geophysical survey as well as a site visit at its Marudi gold project located in the Guiana gold belt, Guyana, South America.

Geophysical survey highlights:

• First-ever performed geophysical survey over the entire 13,500-acre property;
• A total of 1,201 kilometres of flight lines flown over the entire property, with a very low terrain clearance of 40 metres;
• Maximum resolution -- 50-metre line spacing improves on historic government magnetic surveys that were designed and flown on 250-metre line spacing at a higher altitude;
• Latest technology -- advancements in instrument sensitivity, data acquisition and processing expected to provide high-quality results;
• Successful record -- magnetic and radiometric surveys recognized as an excellent tool for the exploration of iron-formation-hosted gold deposits;
• A report with deliverables from the contractor, Precision GeoSurveys, expected in about four weeks;
• The company to commission a detailed interpretation of the raw data (deliverables) by an independent third party geophysicist;
• Objectives of survey results -- to provide geophysical signatures from previously known mineralized zones, identify extensions of known mineralization for further development, locate new zones for exploration and generate priority drill targets;
• Drilling campaign planned for January, 2019.

Marudi site visit

The company has hosted a Marudi site visit, which included representatives from Gold Mountains Asset Management Ltd. (GMA), a wholly owned subsidiary of Zijin Mining Group. GMA, through its managed funds, Zijin Global Fund and Zijin Midas Exploration Fund, invested $3.2-million earlier this year for the further exploration of hard rock mineralization at Marudi.

The group visited the property and toured the various exploration and mineralized zones of interest as well as the mining camp facilities. Photos from the site visit can be viewed at the company's website.

Zijin Mining Group

Listed on the Shanghai and Hong Kong stock exchanges with a market capitalization of $18-billion, Zijin Mining Group is a large Chinese mining group specializing in gold, copper, zinc, and metalliferous resource exploration and development. It is the largest public gold producer, the second-largest mined zinc producer and the third-largest mined copper producer in China. Its core asset, the Zijinshan gold-copper mine, was rated as China's largest gold mine by China Gold Association in March, 2008.

Zijin has developed an extensive product portfolio of gold, copper, lead, zinc, tungsten, iron ore and other base metals, and has invested in 24 provinces across China and nine foreign countries, including Australia, Tajikistan, Russia, Kyrgyzstan, Papua New Guinea, the Democratic Republic of the Congo, Peru, South Africa and Serbia.

Current zones and mineral resource estimate at Marudi

The Toucan Ridge area is located approximately one kilometre east of the Marudi North zone and one kilometre north of the Mazoa Hill zone. The Mazoa Hill zone contains the Marudi gold project's current mineral resource estimate. Data analyzed suggest that the mineralized zone is open at depth and to the southeast.

Mineral resource estimate:

• 259,100 indicated gold ounces within 4,428,000 tonnes grading 1.8 grams per tonne;
• 86,200 inferred gold ounces within 1,653,000 tonnes grading 1.6 grams per tonne.

Current trenching at Marudi

A total of 1,128 metres of trenching have been completed in the Toucan Ridge area. A total of 390 samples have been taken. The exploration team will continue along the ridge progressing in an eastward direction with new trench sites stepping out roughly in 100-metre intervals, mainly perpendicular to the ridge. The area of interest continues for more than 1.75 kilometres to the east of trench TTR-18-06. Trench sites are planned where quartzite-metachert is exposed or interpreted to occur beneath the transported overburden. The eastern part of Toucan Ridge is approximately 400 metres south of the Paunch area, which was trenched in May, 2018, and returned the company's first significant gold discovery.

About quartzite-metachert (host rock) at Marudi

At Marudi, all important gold mineralization discovered to date is associated with the medial quartzite-metachert (host rock) unit of the Marudi Mountain formation. Gold occurs within the magnetite-hematite-rich quartzite and in the magnetite-silicate iron formation. Mineralization of the host rock may be affected at surface by the erosion at different levels of the strata. Therefore, all discoveries of quartzite-metachert on the property are considered important for the potential of containing mineralization at surface and/or at depth and should be explored through trenching and drilling. When discovered these areas are assigned high levels of priority for further exploration work, including drilling in the company's planned drill program.

Marudi 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 sizable gold production. They have a strong association between gold and iron sulphide 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, the Lupin mine and the Musselwhite mine.

The Homestake mine, located in South Dakota, United States, was the largest and deepest gold mine in North America. It has reported production of 43.9 million ounces of gold and was in production from 1878 to 2001.

The Lupin mine, located in Nunavut, Canada, no longer in production, produced approximately three million ounces of gold.

The Mussellwhite mine, located in Ontario, Canada, has estimated reserves of 2.29 million ounces of gold and is owned and operated by Goldcorp and will be in production until 2020.

About the Marudi gold project

The company is developing the Marudi gold project located in Guyana, South America. The project has an 18-year mining licence in good standing, all-season road access and infrastructure in place, with an established camp serviced by employees, service buildings and a full-time camp manager. The property has three known gold-bearing areas: the alluvial areas, the saprolite and the underlying hardrock.

There have been 42,000 metres of historical diamond drilling (141 holes) completed on the project by prior operators that have delineated two zones of mineralization: the Mazoa Hill and Marudi North zones. 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 per tonne and 86,200 inferred gold ounces within 1,653,000 tonnes grading 1.6 g/t. There exists excellent exploration upside through the development of previously and newly 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 the company's website and under the company's profile on SEDAR.

About Guyana Goldstrike Inc.

Guyana Goldstrike is a Canadian-based junior gold company focused on the exploration, development and operation of the Marudi gold project in Guyana, South America.

About Guyana

The Republic of Guyana is located in South America adjacent to 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 were 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 regard to investment attractiveness in the Latin America and Caribbean basin subgroup. The Guiana Shield is the geographic gold-hosting region, and is world recognized as a premier gold region that is highly prospective and underexplored 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).

Qualified person

Locke Goldsmith, MSc, PEng, PGeo, 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.

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