Kaaresselka Gold Royalty

6 October 2020

Tertiary Minerals plc ("Tertiary" or "the Company")

Kaaresselkä Gold Royalty

Tertiary Minerals plc is pleased to note the announcement today by TSX listed Aurion Resources Ltd ("Aurion") that it has completed its maiden drill programme at the Kaaresselkä Project in Finland where Tertiary holds various royalty interests as set out in its news release dated 3 September 2020.

The programme comprised 12 holes for a total of 2,400 m and targeted the depth and strike extensions of the shallowly defined footprint of gold mineralization over 1 km. Drill core is being processed and submitted for assay.

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Market Abuse Regulation (MAR) Disclosure

Certain information contained in this announcement would have been deemed inside information for the purposes of Article 7 of Regulation (EU) No 596/2014 until the release of this announcement.

Additional Information :

Kaaresselkä is an advanced gold exploration project located approximately 4 km south of Aurion's bonanza grade Aamurusko Main gold discovery. Kaaresselkä was originally discovered through base-of-till sampling by the Finnish Geological Survey (GTK) in 1987 and was drilled by both GTK and Tertiary with 127 historical drill holes having been completed, mostly to depths less than 100 m. Drilling results included 11.01 g/t Au over 4.90 m. Aurion is a TSX listed company backed by Kinross Gold Corp. and B2 Gold Corp

Note to Editors:

Tertiary Minerals plc (ticker symbol 'TYM') is an AIM-traded mineral exploration and development company building a multi-commodity project portfolio.