News Release – Vancouver, British Columbia – June 15, 2022: Monumental Minerals Corp. (“Monumental” or the “Company”) (TSX-V: MNRL; FSE: BE5; OTC: MNMRF) is pleased to announce the results of 21 select rock grab samples collected from its Jemi Heavy Rare Earth Element (HREE) Project, located in Coahuila, Mexico, about 40 km south of the Texas, USA border

TORONTO–(BUSINESS WIRE)– Sierra Metals Inc. (TSX: SMT) (BVL: SMT) (NYSE AMERICAN: SMTS) (“Sierra Metals” or “the Company”) is pleased to announce that Oscar Cabrera has been appointed as Chair of the Board of Directors of the Company (the “Board”). Mr. Cabrera joined the Board in October 2021 and replaces Mr. Jose Vizquerra as Chair.

DENVER–(BUSINESS WIRE)– The Board of Directors of Gatos Silver, Inc. (NYSE/TSX: GATO) (“Gatos Silver” or the “Company”) announces with great sadness that Mr. Igor Levental, an independent non-executive director of the Company, passed away suddenly and unexpectedly on June 10, 2022. Mr. Levental served as a director of the Company since 2019 and for last three years brought his unique perspective and shared his intimate knowledge of the mining industry to Gatos Silver’s Board and its Committees.

HALIFAX, NS / ACCESSWIRE / June, 14 2022 / Silver Tiger Metals Inc. (TSXV:SLVR)(OTCQX:SLVTF) (“Silver Tiger” or the “Corporation”) has intersected 2,564.9 g/t silver equivalent over 0.5 meters in the Sooy Vein in Drill Hole ET-21-300 from 128.5 meters to 129.0 meters within a broader mineralized interval of 4.9 meters grading 281.3 g/t silver equivalent from 124.1 meters to 129.0 meters.

Vancouver, British Columbia – Radius Gold Inc. (TSXV: RDU) (“Radius” or “the Company”) is pleased to announce that in order to earn its option for 65% of the Amalia property in Mexico, Pan American Silver
Corp. (NASDAQ,TSX: PAAS) (“Pan American Silver”) has made the final US$700,000 option cash payment
to Radius Gold.

Vancouver, Canada – June 14, 2022 – Aztec Minerals Corp. (AZT: TSX-V, OTCQB: AZZTF) announces that
it has received the final results of Au and multi-element analysis for its 2021-2022 RC drill program on the
Cervantes property in Sonora, Mexico. The program comprised 5,249 meters in 26 RC drill holes, testing
4 targets (Purisima East, California, Jasper, California North).

Vancouver, British Columbia – Capstone Copper Corp. (“Capstone” or the “Company”) (TSX:CS) today
announced brownfield drill results from the 2021-2022 exploration program at the Cozamin mine in Mexico, and at the Santo Domingo Project in Chile as well as greenfield results at the Planalto Project in Brazil, and provided an update of activities at Copper Cities in Arizona, USA

Dieppe, New Brunswick–(Newsfile Corp. – June 13, 2022) – Colibri Resource Corporation (TSXV: CBI) (“Colibri” or the “Company”) is pleased to report that Phase 1 of a planned 2 phase, 10,000 metres (“m”), fully funded Reverse Circulation (“RC”) drill program at the EvelynGold Project (“Evelyn”) located in the Caborca Gold Belt, northwestern Sonora, has been completed.

Vancouver, British Columbia–(Newsfile Corp. – June 13, 2022) – Silver Dollar Resources Inc. (CSE: SLV) (OTCQX: SLVDF) (“Silver Dollar” or the “Company”) is pleased to report the initial assay results from the Phase II drilling ongoing at the underexplored Noria portion of the La Joya Silver Project (the “Property”) located in the state of Durango, Mexico.

VANCOUVER, Canada, June 13, 2022 – Sonoro Gold Corp. (TSXV: SGO | OTCQB: SMOFF | FRA: 23SP) ( “Sonoro” or the “Company”) is pleased to report assay results from the final seven drill holes, completing
the Phase IV drilling program at its Cerro Caliche gold project in Sonora, Mexico. In total, the Company
completed over 7,200 meters of reverse circulation drilling with 63 drill holes which returned multiple
higher-grade gold intercepts and demonstrated the expansion of several known mineralized gold zones
within the Cerro Caliche concession.