VANCOUVER - Goldsource Mines Inc. ('Goldsource' or the 'Company') is pleased to announce additional infill and expansion drill results for the Company's 100%-owned Eagle Mountain Gold Project in Guyana, South America.

Newly reported results are for 29 core holes totaling 3,269 metres from the Bacchus, Bottle Bank, No. 1 Hill and Bucket Shaft areas of the Eagle Mountain deposit. Another 7 core holes totaling 803 metres are for the Salbora deposit.

These drill results represent the final set of infill and expansion drill results from the 2021 program and are the final drill results to be included in the updated Mineral Resource Estimate ('MRE'), which the Company anticipates completing by year-end, 2021. In total, the updated MRE will reflect an estimated 21,000 metres of additional core drilling completed from November 6, 2020, the cut-off date for the February 2021 MRE ('February MRE'). The majority of the drilling was infill, testing the continuity of the shallow sub-horizontal zones of the Eagle Mountain deposit and the sub-vertical breccia zones of the Salbora deposit. The expansion drilling was designed to test for lateral extensions of the Eagle Mountain zones to the north and southwest and for new sub-horizontal zones at depth. The February MRE is contained in a report titled 'Eagle Mountain Gold Project, Potaro - Siparuni Region Guyana, NI 43-101 Technical Report', dated April 7, 2021, with an Effective Date of February 17, 2021.

In parallel, the Company continues to progress the 5,000-metre Phase 2 exploration program that is designed to test known geophysical targets and follow up on prospects along the Salbora-Powis structural trend. Drilling at the Toucan and Powis prospects is progressing well with results expected in the near term.

ABOUT GOLDSOURCE MINES INC.

Goldsource Mines Inc. (www.goldsourcemines.com) is a Canadian exploration company focussed on the 100%-owned Eagle Mountain gold project in Guyana, South America. The Company is led by an experienced management team, proven in making precious metals exploration discoveries and executing on phased project development in the Americas.

Contact:

Steve Parsons

Tel: +1 (604) 694-1760

Email: info@goldsourcemines.com

Web: www.goldsourcemines.com

CAUTIONARY STATEMENT AND FORWARD-LOOKING DISCLAIMER

This news release contains 'forward-looking statements' within the meaning of Canadian securities legislation. Such forward-looking statements concern Goldsource's strategic plans, timing of preparation of an updated MRE, timing and expectations for the Company's exploration and drilling programs at Eagle Mountain and information regarding high grade areas projected from sampling results and drilling results. Such forward-looking statements or information are based on a number of assumptions, which may prove to be incorrect. Assumptions have been made regarding, among other things: conditions in general economic and financial markets; accuracy of assay results and availability of mining equipment; availability of skilled labour; timing and amount of capital expenditures; performance of available laboratory and other related services; the impact of the COVID-19 pandemic on operations and future operating costs. The actual results could differ materially from those anticipated in these forward-looking statements as a result of the risk factors including: the timing and content of work programs; the ultimate impact of the COVID-19 pandemic on operations and results, results of exploration activities and development of mineral properties; the interpretation of drilling results and other geological data; the uncertainties of resource estimations; receipt, maintenance and security of permits and mineral property titles; environmental and other regulatory risks; project costs overruns or unanticipated costs and expenses; delays in release of an updated mineral resource, availability of funds and general market and industry conditions. Forward-looking statements are based on the expectations and opinions of the Company's management on the date the statements are made. The assumptions used in the preparation of such statements, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date the statements were made. The Company undertakes no obligation to update or revise any forward-looking statements included in this news release if these beliefs, estimates and opinions or other circumstances should change, except as otherwise required by applicable law.

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