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Mirasol Signs LOI for the Sale of the Rubi Copper Project for US$4 Million Plus 2% NSR Royalty

VANCOUVER, British Columbia, March 19, 2026 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to report the signing of a binding Letter or Intent (“LOI”) under which Mirasol grants San Lorenzo Gold Corp. (TSX-V: SLG) (OTC: SNLGF) (“San Lorenzo”) an exclusive option agreement (the “Option”) to acquire the mineral rights and landholdings within Mirasol`s 100% owned Rubi Copper Project (“Rubi”) located in Northern Chile.

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Mirasol Resources Closes Private Placement Financing

VANCOUVER, British Columbia, Dec. 16, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to announce the closing of the previously announced non-brokered private placement financing. The Company issued 6,689,445 units of securities (the “Units”) at a price of $0.45 per Unit for aggregate gross proceeds of $3,010,250.25 (the “Offering”). Each Unit is comprised of one (1) common share and one-half of one (1/2) non-transferable common share purchase warrant (the “Warrant”), with each whole Warrant entitling the holder to purchase one additional common share at a price of $0.60 for a period of twelve (12) months from closing of the Offering.

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Mirasol Completes the Sale of the Sascha-Marcelina Projects in Argentina for US$1.5 Million Plus Royalty

VANCOUVER, British Columbia, Dec. 09, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to report it has completed the sale of Mirasol`s 100% owned Sascha Project (“Sascha”) located in Santa Cruz province, Argentina to Andara Mining Pty Ltd (“Andara Mining”), a subsidiary of Pursuit Minerals Ltd. (ASX: PUR) (“Pursuit Minerals”). The Company announced the sale on September 30, 2025. In connection to the sale, Mirasol has also assigned its Option to Purchase Agreement on the Marcelina Project (“Marcelina”) to Andara Mining. Under the Option to Purchase Agreement, Mirasol has the right to acquire an undivided 100% interest in three mineral concessions comprising the Marcelina Project. Sascha and Marcelina are together referred to as the Sascha-Marcelina Projects (“Sascha-Marcelina”).

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Mirasol Announces Change in Chief Financial Officer

VANCOUVER, British Columbia, Dec. 05, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) announces that Carmen Cazares has retired from her role as Chief Financial Officer (“CFO”) of the Company. The Company is also pleased to announce that Francisco Del Castillo, has assumed the role of CFO effective December 1, 2025.

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Mirasol Resources Announces Private Placement Financing

VANCOUVER, British Columbia, Oct. 02, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) today announced it is arranging a non-brokered private placement financing (the “Offering”) of up to 6,666,667 Units (the “Units”) at a price of $0.45 per Unit for aggregate gross proceeds of $3.0 million. Each Unit will be comprised of one (1) common share and one-half of one (1/2) non-transferable common share purchase warrant (the “Warrant”), with each whole Warrant entitling the holder to purchase one additional common share at a price of $0.60 for a period of twelve (12) months from closing of the Offering.

globenewswire.com

Mirasol Signs Agreement for the Sale of the Sascha-Marcelina Projects in Argentina for US$1.5 Million Plus Royalty

VANCOUVER, British Columbia, Sept. 30, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to report the signing of binding heads of agreement (“Agreement”) under which Mirasol grants Andara Mining Pty Ltd (“Andara Mining”) an exclusive right to acquire the mineral rights within Mirasol`s 100% owned Sascha Project located in Santa Cruz province, Argentina (“Sascha”). Mirasol has also agreed to assign to Andara Mining its Option to Purchase Agreement on the Marcelina Project (“Marcelina”). Sascha and Marcelina are together referred to as the Sascha-Marcelina Projects (“Sascha-Marcelina”). Under the Option to Purchase Agreement, Mirasol has the right to acquire an undivided 100% interest in three mineral concessions comprising the Marcelina Project.

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Mirasol Advances Large Untested Target Towards Drilling at the Flagship Sobek Copper-Gold Project in the Vicuña District, Chile

VANCOUVER, British Columbia, Sept. 16, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to announce that the geochemical soil survey and IP ground geophysics reinforce 46 South as a high-priority drill target on the central block of the Company's 100%-owned Sobek Copper-Gold-Silver Project (“Sobek” or “the Project”) in the Vicuña District of Chile . The grid-based soil survey outlined a prominent, large and coherent copper-gold-moly geochemical anomaly that coincidently overlays IP-PDP resistivity and chargeability responses from IP ground geophysics surveys completed late last season. Structurally controlled tourmaline breccias and hydrothermal breccias with porphyry-derived clasts were identified while prospecting and mapping in the target area. The 46 South target resides on the southern margin of a district-scale magnetic high where both the airborne MT and magnetics surveys outlined distinct cylindrical anomalies. To refine the maiden drill program at 46 South an innovative and proven geophysical system will be deployed to further delineate the geometry of both the shallow IP/Res domains and the deeper MT anomalies ahead of drilling.

globenewswire.com

Mirasol Signs Agreement for the Sale of the Nord Projects in Chile for US$2.5 Million Plus Royalty

VANCOUVER, British Columbia, July 15, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to report the signing of Option to Purchase Agreements (“Agreement”) under which Mirasol grants Pampa Camarones SpA (BCS: CAMARONEX), through its affiliate Eco Earth Elements SpA, (“Eco Earth”) an exclusive right to acquire the mineral rights within Mirasol`s 100% owned Nord East and Nord West Projects (“Nord East”, “Nord West” or the “Nord Projects”) located in Region II of Chile. The Nord East and West Projects are directly adjacent to Pampa Camarones´ Ciclón-Exploradora development project, which is advancing to production, and will serve as key properties for the development of essential infrastructure, while also increasing potential resources and adding exploration upside.

globenewswire.com

Mirasol Signs MOU for the Sale of the Virginia Silver Project and Landholdings in Argentina for US$8 Million Plus 2% NSR Royalty

VANCOUVER, British Columbia, June 16, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to report the signing of a Memorandum of Understanding (“MOU”) under which Mirasol grants Ampere Metals Pty. Ltd. (“Ampere Metals”) an exclusive right to enter into a definitive agreement (the “Definitive Agreement”) to acquire the mineral rights and landholdings within Mirasol's 100% owned Virginia Silver Project (“Virginia” or the “Deposit”) located in the Santa Cruz Province, Argentina.

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Second Drill Hole at Potro SE Extends Polymetallic Mineralization at Mirasol's Flagship Sobek Gold-Silver-Copper Project in the Vicuña District, Chile

VANCOUVER, British Columbia, June 16, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to announce that results from the second drill hole at the Potro SE target extends the structurally controlled mineralized hydrothermal breccia system with gold, silver, zinc and lead and indications of copper on the Company's 100%-owned Sobek Copper-Gold Project (“Sobek” or “the Project”) in the Vicuña District of Chile. Located at the southeast corner of the Sobek North property block, the Potro SE target is strategically situated just 3km southwest of NGEx's Lunahuasi discovery in an area that had not previously been drill tested. Building on the success of the first hole at Potro SE, the second drill hole was positioned 200m northeast along the fault structure to test the strongest response of the cylindrical 3D magnetic anomaly and penetrate deeper into the IP PDP chargeability responses (news release dated Mar 2, 2025).

globenewswire.com

Mirasol Resources Announces Shareholder Loan Transaction

VANCOUVER, British Columbia, March 14, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. ("Mirasol") is pleased to announce that it has obtained a loan of $2,000,000 (the “Loan”) from Mr. John Tognetti, a director and control person of Mirasol. The Loan bears interest at the rate of 10% per annum, is payable at the end of one year, may be repaid at any time without penalty and is secured by a General Security Agreement. Mirasol expects to use the Loan proceeds primarily to pay its arm's length creditors and for general working capital.

globenewswire.com

Initial Drill Results Prove Significant Polymetallic Mineralization at Mirasol's Flagship Sobek Gold-Copper Project in the Vicuña District, Chile

VANCOUVER, British Columbia, March 02, 2025 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to announce that initial results from drilling confirms the presence of a mineralized hydrothermal breccia system of gold, silver, zinc and lead with indications of copper on the Company's 100%-owned Sobek Copper-Gold Project (“Sobek” or “the Project”) in the Vicuña District of Chile. Located at the southeast corner of the Sobek North property block, the Potro SE target is strategically situated just 3km southwest of NGEx's Lunahuasi discovery in an area that has not previously been drill tested.

globenewswire.com

Mirasol Resources Announces Option Grants

VANCOUVER, British Columbia, Dec. 17, 2024 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTCPK: MRZLF) (the “Company” or “Mirasol”) announced today that the Board of Directors has approved the grant of 1,586,250 incentive stock options (“Options”) to employees, officers, directors and consultants of the Company under the Company's long-term incentive plan.

globenewswire.com

Mirasol Initiates Drill Program at Flagship Sobek Copper Project in Vicuña District, Chile

VANCOUVER, British Columbia, Nov. 28, 2024 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to report that drilling has started at the Potro SE target on the Company's 100%-owned Sobek Copper-Gold Project (“Sobek” or “the Project”) in the Vicuña District of Chile. Located at the southern corner of the Sobek North property block the Potro SE target is strategically situated just 3 kilometers from NGEx's Lunahuasi discovery and is the first of two high priority porphyry targets planned for drilling this season (news release dated May 13, 2024).

globenewswire.com

Mirasol Launches Exploration Season to Advance to Drilling at Sobek Copper-Gold Project in Vicuña District, Chile

VANCOUVER, British Columbia, Nov. 20, 2024 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to report that the 2024/25 exploration season is underway at the Company's 100%-owned Sobek Copper-Gold Project (“Sobek” or “the Project”) in the Vicuña District of Chile in preparation for drilling two of the high priority porphyry targets identified last year (news release dated May 13, 2024). With permits and community agreements in place exploration to evaluate and prioritize the multiple copper porphyry targets identified including detailed geological and structural mapping, sampling, geophysics and alteration analysis is progressing.

globenewswire.com

Mirasol Resources Closes Private Placement Financing

VANCOUVER, British Columbia, Nov. 12, 2024 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to announce the closing of the previously announced and upsized non-brokered private placement financing. The Company issued 11,335,132 Units (the “Units”) at a price of $0.45 per Unit for aggregate gross proceeds of $5,100,809.40. (the “Offering”). Each Unit is comprised of one (1) common share and one-half of one (1/2) non-transferable common share purchase warrant (the “Warrant”), with each whole Warrant entitling the holder to purchase one additional common share at a price of $0.60 for a period of twelve (12) months from closing of the Offering.

globenewswire.com

Mirasol Resources Increases Private Placement Financing

VANCOUVER, British Columbia, Oct. 02, 2024 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) today announced that due to strong demand, it has increased its previously announced non-brokered private placement from 6,666,666 units to 11,111,111 units at a price of $0.45 per unit (the “Placement”). The aggregate gross proceeds of the offering are expected to be up to $5 million instead of the originally announced $3 million.

globenewswire.com

Clarification: Mirasol Resources Announces Private Placement Financing

VANCOUVER, British Columbia, Sept. 25, 2024 (GLOBE NEWSWIRE) -- In a release issued under the same headline today by Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF), please note that the number of units to be issued is 6,666,667, not 666,667 as previously stated. The clarification follows:

globenewswire.com

Mirasol Resources Announces Private Placement Financing

VANCOUVER, British Columbia, Sept. 25, 2024 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) today announced it is arranging a non-brokered private placement financing (the “Offering”) of up to 666,667 Units (the “Units”) at a price of $0.45 per Unit for aggregate gross proceeds of $3.0 million. Each Unit will be comprised of one (1) common share and one-half of one (1/2) non-transferable common share purchase warrant (the “Warrant”), with each whole Warrant entitling the holder to purchase one additional common share at a price of $0.60 for a period of twelve (12) months from closing of the Offering.

globenewswire.com

Mirasol Resources Closes First Tranche of Private Placement

VANCOUVER, British Columbia, April 23, 2024 (GLOBE NEWSWIRE) -- Mirasol Resources Ltd. (TSX-V: MRZ) (OTC: MRZLF) (the “Company” or “Mirasol”) is pleased to announce the closing of the first tranche of its previously announced non-brokered private placement. The Company issued 3,887,552 Units (the “Units”) at a price of $0.60 per Unit for aggregate gross proceeds of $2,332,531.20. (the “Offering”). Each Unit is comprised of one (1) common share and one-half of one (1/2) non-transferable common share purchase warrant (the “Warrant”), with each whole Warrant entitling the holder to purchase one additional common share at a price of $0.80 for a period of twelve (12) months from closing of the Offering.

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