newsreleases2022 - Doré Copper Mining Corp

Doré Copper reports remaining results from its 2022 infill drilling program at flagship Corner Bay project

Toronto, Ontario – November 22, 2022 – Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSXV: DCMC; OTCQX: DRCMF; FRA: DCM) is pleased to announce the final results from its 2022 drilling program on its flagship Corner Bay property, located in the Chibougamau mining camp, approximately 40 kilometers by road from Chibougamau, Québec. In 2022, Doré Copper has completed 44 holes totaling 38,405 meters and is reporting today the assay results from the last 12 holes.

This drilling program is part of the feasibility study work to upgrade the Inferred Mineral Resource to the Indicated category. Another infill drilling program of approximately 2,000 meters is planned at Devlin for the first quarter of 2023.

Drilling Highlights

Main Vein below dyke

CB-22-86: 5.1 meters of 5.68% Cu, 0.32 g/t Au, 18.3 g/t Ag, and 510 ppm Mo
CB-22-83: 2.6 meters of 3.69% Cu, 10.3 g/t Ag, and 414 ppm Mo

Main Vein above dyke

CB-22-96: 3.3 meters of 2.53% Cu, 0.40 g/t Au and 2.1 meters of 4.73% Cu, 0.23 g/t Au, 45.5 g/t Ag, and 401 ppm Mo

Ernest Mast, President and CEO of Doré Copper, commented, “We have completed nearly 40,000 meters of drilling at Corner Bay in 2022, mostly infill drilling required for the feasibility study. Overall, the results confirm the continuity of the copper mineralization in the deposit. We have also identified a number of holes from 2004 with high-grade copper mineralization in the upper portion of the deposit that were not incorporated in the mineral resource. It is our intention to continue the Corner Bay infill drilling program in 2023 following the exploration drilling at the Doré Ramp and Joe Mann as detailed in the September 12, 2022 news release. Subject to improved market conditions and additional funding, we now expect to complete the feasibility study in 2024.”

Corner Bay Drilling Program

The drilling program which started in early 2022 is designed to infill the Corner Bay deposit at a 50 to 60 meter spacing from surface to a depth of 1,000 meters. From today’s results, 9 holes intersected the Main Vein above the dyke and the remaining 3 holes intersected the Main Vein below the dyke. The results are continuing to confirm the continuity of the copper mineralization for the Main Vein above and below the dyke (Figure 1 and Table 1).

The results today have defined the presence and continuity of a second vein located 50 meters east of the Main Vein above the dyke (Figure 2). This second vein has been intersected by six drill holes to date (CB-21-53, 58, 60 and CB-22-96, 97 and 98) and remains open up-dip. Mineralization in this area appears to be parallel and controlled by mafic dykes, interpreted as originating from the Chibougamau Pluton. Hole CB-21-53 intersected 2.0 meters of 3.34% Cu, 0.56 g/t Au, and 15.6 g/t Ag (February 8, 2022 news release), hole CB-21-58 intersected 0.6 meter of 0.9% Cu, and hole CB-21-60 intersected 1.6 meters of 1.27% Cu.

Following a review of the required drilling for the feasibility study, the Company has identified nine (9) holes from 2004 that were excluded from the current mineral resource estimate (see Figure 1 and Table 2). All holes intersected copper mineralization at a shallow depth in the two subparallel veins (Main Veins) above the dyke. Significant high-grade intercepts included:

CB-04-13: 7.07 meters of 10.09% Cu, 0.61 g/t Au
CB-04-15: 13.0 meters of 3.23% Cu, 0.38 g/t Au
CB-04-17: 13.25 meters of 8.52% Cu, 0.51 g/t Au

Corner Bay Deposit

In the Preliminary Economic Assessment announced on May 10, 2022, the Mineral Resource estimate (“MRE”) for Corner Bay contains an Indicated Resource of 2.68 Mt at 2.66% Cu and 0.26 g/t Au containing 157 million pounds of copper and 22,000 ounces of gold and an Inferred Resource of 5.86 Mt at 3.43% Cu and 0.27 g/t Au containing 443 million pounds of copper and 51,000 ounces of gold, based on a cut-off grade of 1.3% Cu and a copper price of US$3.75 per pound (refer to Technical Report dated June 15, 2022)¹. The Corner Bay deposit contains significant silver and molybdenum which have not been included in the prior MREs. The feasibility study will include the addition of silver and molybdenum as by-products.

The Corner Bay deposit is hosted by the intrusive Lac Doré Complex on the southern flank of the Chibougamau anticline. A regional north-northeastern diorite dyke also cuts the area. Several significant shear zones oriented north-south and northwest-southeast have been identified in the area. The Corner Bay area is characterized by copper porphyry style mineralization and by copper mineralization in shear zones commonly associated with dykes related to the Chibougamau Pluton.

Figure 1. Composite Long Section of the Corner Bay Deposit Showing the 2022 Drill Results

Figure 2. Cross Section Showing Main Vein and Vein #2 in the Area of Hole CB-22-96

Table 1. Corner Bay Recent Drill Assays Highlights from the 2022 Drill Program

Hole	From (m)	To (m)	Width¹ (m)	Cu (%)	Au (g/t)	Ag (g/t)	Mo (ppm)	Zone
CB-22-83	1,063.3	1,065.9	2.6	3.69	0.07	10.3	414	MV below dyke
CB-22-86	1,067.7	1,072.8	5.1	5.68	0.32	18.3	510	MV below dyke
CB-22-92	754.5	758.5	4.0	1.47	0.45	10.1	699	MV above dyke
CB-22-93	1,184.7	1,191.2	6.5	1.53	0.11	5.3	-	MV below dyke
CB-22-94	692.0	694.3	2.3	1.58	0.35	12.1	236	MV above dyke
CB-22-95	No significant mineralization	MV above dyke
CB-22-95W1	No significant mineralization	MV above dyke
CB-22-96	807.7	811.0	3.3	2.53	0.40	21.2	1,877	MV above dyke
	852.5	854.6	2.1	4.73	0.23	45.5	401	MV above dyke V2
CB-22-97	761.9	766.1	4.2	2.27	0.10	14.4	406	MV above dyke
	823.1	825.9	2.8	1.76	0.03	5.4	-	MV above dyke V2
including	824.2	825.0	0.8	6.01	0.09	18.2	370	“
CB-22-98	726.4	730.4	4.0	1.88	0.08	6.2	527	MV above dyke
	776.6	777.5	0.9	3.96	0.02	14.1	322	MV above dyke V2
CB-22-99W1	No significant mineralization	MV above dyke
CB-22-99	No significant mineralization	MV above dyke

The true width of the structures intersected is estimated at approximately 60-75% of the downhole width. Main Vein = MV.

Table 2. Corner Bay 2004 Drill Assays Highlights not Included in MRE

Hole	From (m)	To (m)	Width¹ (m)	Cu (%)	Au (g/t)	Ag (g/t)	Mo (ppm)	Zone
CB-04-01	132.28	136.66	4.38	2.80	0.35	NA	NA	MV above dyke
	140.62	147.06	6.44	2.12	0.33	NA	NA	MV above dyke
CB-04-10	138.27	139.57	1.3	2.44	0.30	NA	NA	MV above dyke
	141.0	143.86	2.86	2.71	0.25	NA	NA	MV above dyke
CB-04-11	146.4	148.73	2.33	6.24	0.79	NA	NA	MV above dyke
CB-04-12	180.62	182.14	1.52	1.58	0.37	NA	NA	MV above dyke
CB-04-13	213.03	220.1	7.07	10.09	0.61	NA	NA	MV above dyke
CB-04-14	105.82	109.83	4.01	3.44	0.39	NA	NA	MV above dyke
CB-04-15	100.12	104.59	4.47	1.34	0.21	NA	NA	MV above dyke
	112.34	125.34	13.0	3.23	0.38	NA	NA	MV above dyke
CB-04-16	158.19	162.54	4.35	4.74	0.39	NA	NA	MV above dyke
CB-04-17	181.73	194.98	13.25	8.52	0.51	NA	NA	MV above dyke

The true width of the structures intersected is estimated at approximately 50-70% of the downhole width. Main Vein = MV

Drilling and Quality Control

The Company is using Miikan Drilling as the drilling contractor. Miikan is a joint venture between Chibougamau Diamond Drilling Ltd., the First Nations community of Ouje-Bougoumou and the First Nations community of Mistissini both located in the Eeyou Istchee territory.

Sample preparation and analysis within the mineralized zones are completed at AGAT Laboratories in Mississauga, Ontario. For AGAT, samples are weighed, dried, crushed to 75% passing 2 mm, split to 250 g, and pulverized to 85% passing 75 microns. Samples are then fire assayed for Au (50 g) and 4 acid digest ICP-OES finish for 43 elements. Outside the mineralized zones, sample preparation is completed at SGS Canada Inc. in Val-d’Or, Québec and analysis (fire assay and ICP analysis) is completed at SGS Canada Inc. in Burnaby, B.C. Samples are weighed, dried, crushed to 75% passing 2 mm, split to 250 g, and pulverized to 85% passing 75 microns. Samples are then fire assayed for Au (50 g) and sodium peroxide fusion ICP-MS finish for 34 elements.

QA/QC is done in house by Doré Copper Geologists with oversight from the Vice President Exploration. The check samples (blanks and standards – 4% of total samples with another 2% of core duplicates) that were inserted into the sample batches are verified against their certified values and are deemed a pass if they are within three standard deviations of the certified value. The duplicates are evaluated against each other to determine mineralization distribution (nugget). If there are large discrepancies in the check samples, then the entire batch is requested to be re-assayed.

Sylvain Lépine, M.Sc, P.Geo., Vice President Exploration of the Corporation and a “Qualified Person” within the meaning of National Instrument 43-101, has reviewed and approved the technical information contained in this news release.

About Doré Copper Mining Corp.

The Corporation has consolidated a large land package in the prolific Lac Doré/Chibougamau and Joe Mann mining camps that has historically produced 1.6 billion pounds of copper and 4.4 million ounces of gold². The land package includes 13 former producing mines, deposits and resource target areas within a 60-kilometer radius of the Corporation’s Copper Rand Mill.

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Technical report titled “Preliminary Economic Assessment for the Chibougamau Hub-and-Spoke Complex, Québec, Canada” dated June 15, 2022, in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”). The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.
Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “forward-looking statements” under applicable Canadian and United States securities legislation. Forward-looking statements include, but are not limited to, statements with respect to the use of proceeds of the Offering, the timing and ability of the Corporation to receive necessary regulatory approvals, including the final acceptance of the Offering from the TSX Venture Exchange, the renunciation to the purchasers of the Flow-Through Shares and timing thereof, the tax treatment of the Flow-Through Shares, the Corporation’s ability to meet its production target, the commencement, timing and completion of a feasibility study, and the plans, operations and prospects of the Corporation. Forward-looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable, are subject to known and unknown risks, uncertainties and other factors which may cause the actual results and future events to differ materially from those expressed or implied by such forward-looking statements. Such factors include, but are not limited to: general business, economic, competitive, political and social uncertainties; delay or failure to receive regulatory approvals; the price of gold and copper; and the results of current exploration. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. The Corporation disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

Dore Copper announces update on the Joe Mann option agreement

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Toronto, Ontario – November 18, 2022 – Doré Copper Mining Corp. (the “Company” or “Doré Copper“) (TSXV: DCMC; OTCQX: DRCMF; FRA: DCM) is pleased to announce that it has entered into an agreement (the “Amending Agreement“) on October 28, 2022 to amend the earn-in option agreement (the “Option Agreement“) dated January 2, 2020 between the Company and Ressources Jessie Inc. (“Ressources Jessie“) pursuant to which the Company has an option to acquire the Joe Mann Property (the “Property“) from Ressources Jessie, as previously announced on January 2, 2020. The Joe Mann mine, located 60 kilometers south of Chibougamau, Quebec, produced 1.12 million ounces of gold at an average grade of 8.26 g/t from the 1950s to 2007¹. The deposit has an inferred resource of 680,000 tonnes grading 6.78 g/t Au and 0.24% Cu, which was included in the Company’s Preliminary Economic Assessment (PEA) of its hub-and-spoke operation announced on May 10, 2022².

Pursuant to the terms of the Amending Agreement, the Company has agreed to accelerate the final scheduled cash and share payments under the Option Agreement. The Company has made the final scheduled cash payment of $1,500,000 to Ressources Jessie (thus fulfilling the scheduled cash payment obligations), and will issue 3,333,333 common shares in the capital of the Company (“Common Shares“) to Legault Metals Inc. (“Legault“) at a deemed price of $0.30 per Common Share for an aggregate value of $1,000,000 upon acceptance of the TSX Venture Exchange (thus fulfilling all scheduled share payment obligations). The deadline for the Company to incur the remaining exploration expenditures on the Property, totaling approximately $830,000, has also been extended to February 28, 2023.

Following the fulfillment of the scheduled cash and share payment obligations, Ressources Jessie will commence the transfer of the Property to the Company. Upon exercise of the option, the Company is required to grant to Ressources Jessie a 2% net smelter return (“NSR“) royalty on the mine production from the Property. The Company will be entitled to buy back 1% NSR in consideration for a payment to Ressources Jessie of $2,000,000 and to buy back an additional 0.5% NSR in consideration for a payment to Ressources Jessie of $4,000,000.

Pursuant to the original terms of the Option Agreement, upon the commencement of commercial production at the Property, Doré Copper will make an additional $1,000,000 cash payment to Ressources Jessie and issue $1,500,000 in Common Shares to Legault.

The Company is currently drilling a hole on the eastern side of the Joe Mann mine, below the deepest mined level, to test the down plunge extension of a historical underground hole that returned 9.33 g/t Au over 2.4 meters (U-9161_D). In early 2023, the Company plans to test a geophysical anomaly located approximately 500 metres south of the mine.

Sylvain Lépine, M.Sc., P.Geo., Vice President Exploration of the Company and a “Qualified Person” within the meaning of National Instrument 43-101 – Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical information contained in this news release.

The map below shows the land tenure of the Joe Mann Property.

About Doré Copper Mining Corp.

Doré Copper Mining Corp. aims to be the next copper producer in Québec with an initial production target of +50 Mlbs of copper equivalent annually by implementing a hub-and-spoke operation model with multiple high-grade copper-gold assets feeding its centralized Copper Rand mill². The Company has delivered its PEA in May 2022 and is proceeding with a feasibility study.

The Company has consolidated a large land package in the prolific Lac Doré/Chibougamau and Joe Mann mining camps that has historically produced 1.6 billion pounds of copper and 4.4 million ounces of gold¹. The land package includes 13 former producing mines, deposits and resource target areas within a 60-kilometre radius of the Company’s Copper Rand Mill.

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Technical report titled “Preliminary Economic Assessment for the Chibougamau Hub-and-Spoke Complex, Québec, Canada” dated June 15, 2022, in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”). The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.
Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

Dore copper submits Preliminary Information Statement for environmental and social impact assessment

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Toronto, Ontario – November 17, 2022 – Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSXV: DCMC; OTCQX: DRCMF; FRA: DCM) is pleased to announce it has submitted to the Administrator of the James Bay and Northern Quebec Agreement the Preliminary Information Statement for the Environmental and Social Impact Assessment (ESIA) for the commencement of its proposed hub-and spoke operation near Chibougamau, Québec. The Preliminary Information Statement includes the Corner Bay and Devlin mines, the Copper Rand mill, the tailings management facility and associated roads and electrical power connections. The vast majority of the sites described in the Preliminary Information Statement have existing infrastructures.

The Preliminary Information Statement is the first step of the environmental and social assessment and review procedure under the Environment Quality Act. On behalf of the Administrator, the Environmental and Social Impact Evaluating Committee (COMEV) will review the Preliminary Information Statement then issue a project Directive, the proponent roadmap under which the ESIA will be carried out.

About Doré Copper Mining Corp.

The Corporation has consolidated a large land package in the prolific Lac Doré/Chibougamau and Joe Mann mining camps that has produced 1.6 billion pounds of copper and 4.4 million ounces of gold². The land package includes 13 former producing mines, deposits and resource target areas within a 60-kilometer radius of the Corporation’s Copper Rand Mill.

For further information, please contact:

Ernest Mast
President and Chief Executive Officer
Phone: (416) 792-2229
Email:

Laurie Gaborit
VP Investor Relations
Phone: (416) 219-2049
Email:

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Technical report titled “Preliminary Economic Assessment for the Chibougamau Hub-and-Spoke Complex, Québec, Canada” dated June 15, 2022, in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”). The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.
Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

Doré Copper announces closing of C$5.75 million private placement of common shares and flow-through shares including full exercise of agents’ option

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Not for distribution to United States news wire services or for dissemination in the United States

Toronto, Ontario – October 21, 2022 – Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSX-V:DCMC; OTCQB:DRCMF; FRA:DRM) is pleased to announce that it has closed its previously announced “best efforts” private placement (the “Offering“), pursuant to which the Corporation sold an aggregate of (i) 7,666,820 common shares in the capital of the Corporation (the “Offered Common Shares“) at a price of $0.30 per Offered Common Share for gross proceeds of $2,300,046 and (ii) 9,583,525 common shares in the capital of the Corporation that will qualify as “flow-through shares” (within the meaning of subsection 66(15) of the Income Tax Act (Canada) and section 359.1 of the Taxation Act (Québec)) (the “Flow-Through Shares“) at a price of $0.36 per Flow-Through Share for gross proceeds of $3,450,069, for aggregate gross proceeds to the Corporation of $5,750,115, including the full exercise of the agents’ option.

Cormark Securities Inc., Desjardins Securities Inc. and Paradigm Capital Inc. acted as agents (collectively, the “Agents“) in connection with the Offering pursuant to the terms of an agency agreement dated October 21, 2022. In consideration for their services in connection with the Offering, the Corporation paid the Agents a cash commission equal to $329,555, being 6% of the aggregate gross proceeds from the sale of Offered Common Shares and Flow-Through Shares, and a reduced cash commission equal to 3% of the aggregate gross proceeds from the sale of Offered Common Shares to certain subscribers on the President’s List. In addition, the Corporation also paid fees in the aggregate amount of approximately $35,753 (plus applicable taxes) in respect of two subscriptions under the Offering.

The net proceeds from the sale of the Offered Common Shares will be used for exploration and development activities and for working capital and general corporate purposes. The Corporation will (a) use an amount equal to the gross proceeds received by the Corporation from the sale of the Flow-Through Shares, pursuant to the provisions in the Income Tax Act (Canada), to incur, directly or indirectly, expenses (“Qualifying Expenditures“) related to the Corporation’s projects in Québec, on or before December 31, 2023, that are eligible “Canadian exploration expenses” (as defined in the Income Tax Act (Canada)), of which (i) at least 50% will qualify, if available under applicable law, as “flow-through critical mineral mining expenditures” (as proposed to be defined in the legislative proposals relating to the Income Tax Act (Canada) published by the Department of Finance on August 9, 2022 (the “Tax Proposals“)), and (ii) the remainder will qualify as “flow-through mining expenditures” (as defined in the Income Tax Act (Canada), as proposed to be amended by the Tax Proposals), and (b) renounce all the Qualifying Expenditures in favour of the subscribers of the Flow-Through Shares effective December 31, 2022. In addition, with respect to Québec resident subscribers who are eligible individuals under the Taxation Act (Québec), the Canadian exploration expenses will also qualify for inclusion in the “exploration base relating to certain Québec exploration expenses” within the meaning of section 726.4.10 of the Taxation Act (Québec) and for inclusion in the “exploration base relating to certain Québec surface mining expenses or oil and gas exploration expenses” within the meaning of section 726.4.17.2 of the Taxation Act (Québec).

Joseph de la Plante, a director of the Corporation, and funds managed by Equinox Partners Investment Management, LLC (“Equinox Partners“), an insider of the Corporation, subscribed for 135,000 Flow-Through Shares and 3,450,000 Offered Common Shares, respectively, under the Offering on the same terms as arm’s length investors. The participation of Mr. de la Plante and Equinox Partners in the Offering constitutes a “related party transaction” for the purposes of Multilateral Instrument 61-101 – Protection of Minority Security Holders in Special Transactions (“MI 61-101“). The Corporation is exempt from the requirements to obtain a formal valuation or minority shareholder approval in connection with the Offering in reliance on sections 5.5(a) and 5.7(1)(a), respectively, of MI 61-101, as neither the fair market value of the securities issued to the related parties nor the fair market value of the consideration for the securities issued to the related parties exceeds 25% of the Corporation’s market capitalization as calculated in accordance with MI 61-101. The Corporation did not file a material change report more than 21 days before the expected closing date of the Offering as the aforementioned insider participation had not been confirmed at that time and the Corporation wished to close the Offering as expeditiously as possible.

The Offering was made by way of private placement in each of the provinces of Canada pursuant to applicable exemptions from the prospectus requirements and, in the case of the Offered Common Shares, in certain other jurisdictions, in each case in accordance with all applicable laws. The Offering of the Offered Common Shares was conducted on a private placement basis to persons in the United States who are “qualified institutional buyers”, as such term is defined in Rule 144A under the United States Securities Act of 1933, as amended (the “U.S. Securities Act“), who are also “accredited investors”, as such term is defined in Rule 501(a) of Regulation D under the U.S. Securities Act (“Regulation D“), and, in each case, in compliance with Rule 506(b) of Regulation D and applicable United States securities laws. The securities issued under the Offering are subject to a four month hold period under applicable Canadian securities laws which will expire on February 22, 2023. The Offering is subject to final acceptance of the TSX Venture Exchange.

The securities offered have not been and will not be registered under the U.S. Securities Act or any state securities law, and may not be offered, sold or delivered, directly or indirectly, within the United States, or to or for the account or benefit of U.S. persons, absent registration or an exemption from such registration requirements. This news release does not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of securities in any state in the United States in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of that jurisdiction. The securities referenced herein have not been approved or disapproved by any regulatory authority.

About Doré Copper Mining Corp.

For further information, please visit the Corporation’s website at www.dorecopper.com or refer to Doré Copper’s SEDAR filings at www.sedar.com or contact:

For further information, please contact:

Ernest Mast
President and Chief Executive Officer
Phone: (416) 792-2229
Email:

Laurie Gaborit
VP Investor Relations
Phone: (416) 219-2049
Email:

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Technical report titled “Preliminary Economic Assessment for the Chibougamau Hub-and-Spoke Complex, Québec, Canada” dated June 15, 2022, in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”). The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.
Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

Doré Copper announces up to C$5 million private placement of common shares and flow-through shares

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Not for distribution to United States newswire services or for dissemination in the United States

Toronto, OntarioSeptember 29, 2022 Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSX-V:DCMC; OTCQB:DRCMF; FRA:DRM) is pleased to announce that it has entered into an agreement pursuant to which Cormark Securities Inc. (“Cormark“), as lead agent, on behalf of a syndicate of agents (collectively, the “Agents“), has agreed to with a private placement of: (i) up to 6,666,800 common shares in the capital of the Corporation (the “Offered Common Shares“) at a price of $0.30 per Offered Common Share (the “Common Share OfferingPrice“) for gross proceeds of up to approximately $2,000,040 and (ii) up to 8,333,500 common shares in the capital of the Corporation that will qualify as “flow-through shares” (within the meaning of subsection 66(15) of the Income Tax Act (Canada) and section 359.1 of the Taxation Act (Québec)) (the “Flow-Through Shares“) at a price of $0.36 per Flow-Through Share for gross proceeds of up to approximately $3,000,060, for aggregate gross proceeds to the Corporation of up to approximately $5,000,100 (collectively, the “Offering“).

The Agents will have the option, exercisable in whole or in part at any time up to 48 hours prior to the closing of the Offering, to arrange for the purchase of up to an additional 1,000,020 Offered Common Shares at the Common Share Offering Price and 1,250,025 Flow-Through Shares at a price of $0.36 per Flow-Through Share.

The net proceeds from the sale of the Offered Common Shares will be used for exploration and development activities and for working capital and general corporate purposes. The Corporation will (a) use an amount equal to the gross proceeds received by the Corporation from the sale of the Flow-Through Shares, pursuant to the provisions in the IncomeTaxAct(Canada), to incur, directly or indirectly, expenses (“Qualifying Expenditures“) related to the Corporation’s projects in Québec, on or before December 31, 2023, that are eligible “Canadian exploration expenses” (as defined in the Income Tax Act (Canada)), of which (i) at least 50% will qualify, if available under applicable law, as “flow-through critical mineral mining expenditures” (as proposed to be defined in the legislative proposals relating to the Income Tax Act (Canada) published by the Department of Finance on August 9, 2022 (the “Tax Proposals“)), and (ii) the remainder will qualify as “flow-through mining expenditures” (as defined in the Income Tax Act (Canada), as proposed to be amended by the Tax Proposals), and (b) renounce all the Qualifying Expenditures in favour of the subscribers of the Flow-Through Shares effective December 31, 2022. In addition, with respect to Québec resident subscribers who are eligible individuals under the TaxationAct(Québec), the Canadian exploration expenses will also qualify for inclusion in the “exploration base relating to certain Québec exploration expenses” within the meaning of section 726.4.10 of the TaxationAct(Québec) and for inclusion in the “exploration base relating to certain Québec surface mining expenses or oil and gas exploration expenses” within the meaning of section 726.4.17.2 of the Taxation Act (Québec).

The Offering is expected to close on or about October 21, 2022, or such other date as the Corporation and Cormark, on behalf of the Agents, may agree and is subject to certain conditions including, but not limited to, the receipt of all necessary regulatory and other approvals including the acceptance of the TSX Venture Exchange.

The Offering will be made way of private placement in each of the provinces of Canada pursuant to applicable exemptions from the prospectus requirements and, in the case of the Offered Common Shares, such other jurisdictions, in each case in accordance with all applicable laws, provided that no prospectus, registration statement or other similar document is required to be filed in such jurisdiction. The securities issued under the Offering will be subject to a four month hold period under applicable Canadian securities laws.

The securities offered have not been, nor will they be, registered under the United States Securities Act of 1933, as amended, or any state securities law, and may not be offered, sold or delivered, directly or indirectly, within the United States, or to or for the account or benefit of U.S. persons, absent registration or an exemption from such registration requirements. This news release does not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of securities in any state in the United States in which such offer, solicitation or sale would be unlawful.

About Doré Copper Mining Corp.

Doré Copper Mining Corp. aims to be the next copper producer in Québec with an initial production target of +50 million pounds of copper equivalent annually by implementing a hub-and spoke operation model with multiple high-grade copper-gold assets feeding its centralized Copper Rand mill. The Corporation has delivered its PEA in May 2022 and plans to commence a feasibility study and submit the Preliminary Information Statement of the Environmental and Social Impact Assessment (ESIA) in Q3 2022. The Corporation has consolidated a large land package in the prolific Lac Doré/Chibougamau and Joe Mann mining camps that has historically produced 1.6 billion pounds of copper and 4.4 million ounces of gold. The land package includes 13 former producing mines, deposits and resource target areas within a 60-

For further information, please contact:

Ernest Mast
President and Chief Executive Officer
Phone: (416) 792-2229
Email:

Laurie Gaborit
VP Investor Relations
Phone: (416) 219-2049
Email:

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “forward-looking statements” under applicable Canadian securities legislation.Forward-lookingstatementsinclude,butarenotlimitedto,statementswithrespecttotheterms of the Offering, the use of proceeds of the Offering, the timing and ability of the Corporation to close the Offering, the timing and ability of the Corporation to receive necessary regulatory approvals, including the acceptanceoftheOfferingfromtheTSXVentureExchange,therenunciationtothepurchasersoftheFlow- Through Shares and timing thereof, the tax treatment of the Flow-Through Shares, and the plans, operations and prospects of the Corporation. Forward-looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable, are subject to known and unknown risks, uncertainties and other factors which may cause the actual results and future events to differmateriallyfromthoseexpressedorimpliedbysuchforward-lookingstatements.Suchfactorsinclude, but are not limited to: general business, economic, competitive, political and social uncertainties; delay or failuretoreceiveregulatory approvals;thepriceofgoldandcopper;andtheresults ofcurrentexploration. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not

place undue reliance on forward-looking statements. The Corporation disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Neither TSX Venture Exchange nor its Regulation Services Provider (as thatterm is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

Dore Copper announces its drilling plans for Joe Mann and Doré Ramp exploration target

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Toronto, Ontario – September 12, 2022 – Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSXV: DCMC; OTCQX: DRCMF; FRA: DCM) is pleased to announce its plan to drill at Joe Mann, part of the preliminary economic assessment (“PEA”), and at the Doré Ramp gold-copper deposit located 2.5 kilometers from the existing Copper Rand mill, near Chibougamau, Québec (Figure 1). This drilling is expected to start in the fourth quarter and is in addition to the ongoing infill drill program at Corner Bay and Devlin for the upcoming feasibility study (latest news release August 11, 2022).

Earlier this summer, at the Doré Ramp exploration target, Doré Copper completed one diamond drill hole (LDR-22-01) and intersected two veins with one grading 4.37% Cu, 0.87 g/t Au and 13.0 g/t Ag over 2.4 meters, including 17.6% Cu, 1.76 g/t Au and 43.90 g/t Ag over 0.5 meter, at a vertical depth of 880 meters, which is approximately 500 meters deeper than the historical estimate (Figure 2). This hole indicates the potential to extend the currently known Doré Ramp mineralized system at depth. This initial drilling plan consists of four wedge cuts from hole LDR-22-01 to test for vein extensions and new veins.

Joe Mann Deposit

Doré Copper’s drilling plan for the fall is to extend the plunge of a mineralized shoot in the Main Zone at depths between 1,100 and 1,300 meters. Pending the results, a more detailed drilling plan will be designed to further upgrade and expand the current mineral resources. The Corporation has an option agreement to acquire 100% of the Joe Mann property by January 2, 2023 (news release January 2, 2020).

In the PEA released on May 10, 2022, the former Joe Mann gold mine is one of the three projects feeding the Copper Rand mill in its hub-and-spoke operation model. The mine produced a total of 1,173,238 ounces of gold, 28.7 million pounds of copper, and approximately 607,000 ounces of silver from 1956 to 2007 (4.75 million tonnes grading 8.26 g/t Au, 0.25% Cu and 5.0 g/t Ag)¹. The current mineral resources stand at 680,000 tonnes averaging 6.78 g/t Au and 0.24% Cu (133,000 ounces) in the inferred category and are located in eastern part of the Main Zone and the West Zone at depths below 870 meters (news release July 28, 2021 and Technical report June 15, 2022²).

Doré Ramp Deposit

The immediate vicinity of the Copper Rand mill is showing strong potential for the discovery of new copper and gold mineralization. The Doré Ramp deposit (previously called Lac Doré Ramp) is within the Chibougamau Central mining camp and as many other deposits and mineral occurrences it is within a wide (from 100 to 400 meters) shear zone perpendicular to the Lac Doré fault. In the Chibougamau Central camp, the copper and gold-rich mineralized zones are in contact with acidic to intermediate dykes interpreted as coming from the Chibougamau Pluton. The Doré Ramp deposit starts at 80 meters below surface and has been tested over a strike length of approximately 500 metres. It consists of a series of subparallel pinch and swell veins, varying in thickness from 0.3 to 7.7 meters, that extend from 150 to 300 meters along strike. A number of mineralized lenses are displaced by northeast faults at 15 to 30 metres intervals.

The Doré Ramp deposit was drilled in a few different phases from 1984 to 1992. A total of 47 drill holes from surface are reported during that period. A double ramp of approximately 1 kilometer was excavated in 1991-92 to a vertical depth of 160 meters, followed by an underground drilling campaign of 46 holes totaling 10,200 meters testing the deposit mainly to a depth of 240 meters (only five holes tested the deposit between 300 and 600 meters). At the end of 1992, Westminer Canada reported a historical estimate of 209,120 tonnes at 1.23% Cu and 5.4 g/t Au, from a depth of 115 meters (surface pillar limit) to 350 meters (Source: Westminer Canada Limited, Project Lac Doré, November 1992). This estimate is considered to be historical in nature and should not be relied upon. A Qualified Person has not completed sufficient work to classify the historical estimate as a current mineral resource or mineral reserve. The Company is not treating the historical estimate as current mineral resources or mineral reserves). No subsequent exploration programs were carried out on the Doré Ramp deposit. The deposit remains open at depths below 400 meters and along strike towards the Lac Doré fault.

The Doré Ramp deposit has several geological and mineralization characteristics similar to the past producing Copper Rand and Cedar Bay mines. The Copper Rand mine is the largest past producing mine in the Central Chibougamau mining camp having produced 1.5 million ounces of gold and 0.5 billion pounds of copper from 1959 to 2008 (16.4 million tonnes at an average grade of 1.8% Cu and 2.8 g/t Au)¹. From surface, the mineralization at Copper Rand and Doré Ramp begins at 450 meters from the Doré Lake fault and plunges to the west (Figure 2). At Copper Rand, at depths below 650 meters, the mineralization extends next to the contact with the Doré Lake fault. This conceptual target has never been tested at the Doré Ramp deposit. With the first deeper hole (LDR-22-01) having intersected copper-gold mineralization, the next drilling phase will indicate if the mineralization system extends up dip along strike.

Doré Ramp North Zone

The Doré Ramp North Zone is located 450 meters northeast of the Doré Ramp deposit and is defined by a shear corridor parallel to the Doré Ramp shear. Information collected from 11 historical drill holes targeting the Doré Ramp North show similar mineralization to the Doré Ramp. The best intersections reported were 2.13% Cu and 1.25 g/t Au over 2.3 metres (hole S4-91-6) and 1.43% Cu and 1.68 g/t Au over 2.75 metres (hole S4-91-9) (Source: Westminer Canada Limited, drill logs March 1991). Doré Copper intends to follow up on this target after completing the drilling program at the Doré Ramp and continue its compilation work on the area around the large Copper Rand property in the Central Chibougamau Camp.

Figure 1. Location map of the Doré Ramp and Doré Ramp North shear zones with respect to the past producing Copper Rand mine and mill and Cedar Bay mine.

Figure 2. Long sections of Copper Rand mine and Doré Ramp showing similarities of the two deposits.

Drilling and Quality Control

Sample preparation and analysis are completed at AGAT Laboratories in Mississauga, Ontario. For AGAT, samples are weighed, dried, crushed to 75% passing 2 mm, split to 250 g, and pulverized to 85% passing 75 microns. Samples are then fire assayed for Au (50 g) and 4 acid digest ICP-OES finish for 43 elements.

QA/QC is done in house by Doré Copper Geologists with oversight from the Vice President Exploration. The check samples (blanks and standards – 4% of total samples with another 2% of core duplicates) that were inserted into the sample batches are verified against their certified values and are deemed a pass if they are within 3 standard deviations of the certified value. The duplicates are evaluated against each other to determine mineralization distribution (nugget). If there are large discrepancies in the check samples, then the entire batch is requested to be re-assayed.

About Doré Copper Mining Corp.

For further information, please contact:

Ernest Mast
President and Chief Executive Officer
Phone: (416) 792-2229
Email:

Laurie Gaborit
VP Investor Relations
Phone: (416) 219-2049
Email:

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).
Technical report titled “Preliminary Economic Assessment for the Chibougamau Hub-and-Spoke Complex, Québec, Canada” dated June 15, 2022, in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”). The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “forward-looking statements” under applicable Canadian securities legislation. Forward-looking statements include predictions, projections and forecasts and are often, but not always, identified by the use of words such as “seek”, “anticipate”, “believe”, “plan”, “estimate”, “forecast”, “expect”, “potential”, “project”, “target”, “schedule”, “budget” and “intend” and statements that an event or result “may”, “will”, “should”, “could” or “might” occur or be achieved and other similar expressions and includes the negatives thereof. Specific forward-looking statements in this press release include, but are not limited to drilling Joe Mann and Lac Doré Ramp in the fourth quarter of 2022, aiming to be the next copper producer in Québec with an initial production target of +50 million pounds of copper equivalent annually; implementing a hub-and spoke operation model; plans to commence a feasibility study and submit the Preliminary Information Statement of the Environmental and Social Impact Assessment (ESIA) in Q3 2022.

All statements other than statements of historical fact included in this release, including, without limitation, statements regarding the timing and ability of the Corporation to receive necessary regulatory approvals, and the plans, operations and prospects of the Corporation and its properties are forward-looking statements. Forward-looking statements are necessarily based upon a number of estimates and assumptions that, while considered reasonable, are subject to known and unknown risks, uncertainties and other factors which may cause actual results and future events to differ materially from those expressed or implied by such forward-looking statements. Such factors include, but are not limited to, actual exploration results, changes in project parameters as plans continue to be refined, future metal prices, availability of capital and financing on acceptable terms, general economic, market or business conditions, uninsured risks, regulatory changes, delays or inability to receive required regulatory approvals, health emergencies, pandemics and other exploration or other risks detailed herein and from time to time in the filings made by the Corporation with securities regulators. Although the Corporation has attempted to identify important factors that could cause actual actions, events or results to differ from those described in forward-looking statements, there may be other factors that cause such actions, events or results to differ materially from those anticipated. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. The Corporation disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Doré Copper appoints Chief Operating Officer

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Toronto, Ontario – August 19, 2022 – Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSXV: DCMC; OTCQX: DRCMF; FRA: DCM) is pleased to announce the appointment of Mr. Nicholas (Nick) Kwong to the role of Chief Operating Officer effective immediately.

Mr. Kwong, P. Eng, MBA, has more than 15 years of experience in the mining industry, predominantly in gold and base metals in North American, Australia, Latin American and Saudi Arabia. He joined New Gold Inc. in 2005 as a project engineer for the design and construction of the New Afton underground mine. He then held numerous site and corporate roles for New Gold, including Manager Mining Engineering, Director Business Improvement, and Director Technical Services up to 2019. He subsequently joined Ma’aden Gold in Saudi Arabia as General Manager of the Sukhaybarat & Bulghah gold mines. There he completed the mine and mill expansion and modernization which resulted in a significant increase in production and decrease in unit costs, all while controlling capital costs during the COVID 19 pandemic.

Ernest Mast, President and CEO of Doré Copper stated, “We welcome Nick to our Company in the newly created position of COO. Nick’s hands-on experience in mine and mill design, project engineering, execution and start-up will be beneficial as we advance our hub-and spoke operation to the feasibility stage with the aim of being in production by 2025-26.”

Doré Copper has granted 1,100,000 stock options to employees and consultants. The stock options have an exercise price of $0.41 per share and a term of five years from the date of grant and are subject to the policies of the TSX Venture Exchange. The options were issued in accordance with the Corporation’s omnibus share incentive plan.

About Doré Copper Mining Corp.

Doré Copper Mining Corp. aims to be the next copper producer in Québec with an initial production target of +50 Mlbs of copper equivalent annually by implementing a hub-and spoke operation model with multiple high-grade copper-gold assets feeding its centralized Copper Rand mill¹. The Corporation has delivered its PEA in May 2022 and plans to commence a feasibility study and submit the Preliminary Information Statement of the Environmental and Social Impact Assessment (ESIA) in Q3 2022.

For further information, please contact:

Ernest Mast
President and Chief Executive Officer
Phone: (416) 792-2229
Email:

Laurie Gaborit
VP Investor Relations
Phone: (416) 219-2049
Email:

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Technical report titled “Preliminary Economic Assessment for the Chibougamau Hub-and-Spoke Complex, Québec, Canada” dated June 15, 2022, in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”). The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.

Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “forward-looking statements” under applicable Canadian securities legislation. Forward-looking statements include predictions, projections and forecasts and are often, but not always, identified by the use of words such as “seek”, “anticipate”, “believe”, “plan”, “estimate”, “forecast”, “expect”, “potential”, “project”, “target”, “schedule”, “budget” and “intend” and statements that an event or result “may”, “will”, “should”, “could” or “might” occur or be achieved and other similar expressions and includes the negatives thereof. Specific forward-looking statements in this press release include, but are not limited to aiming to be the next copper producer in Québec with an initial production target of +50 Mlbs of copper equivalent annually; implementing a hub-and spoke operation model; plans to commence a feasibility study and submit the Preliminary Information Statement of the Environmental and Social Impact Assessment (ESIA) in Q3 2022.

Doré Copper continues to intersect High-Grade Copper mineralization from 2022 infill drilling program at flagship Corner Bay project

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Toronto, Ontario – August 11, 2022 – Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSXV: DCMC; OTCQX: DRCMF; FRA: DCM) is pleased to announce the second set of results from its 2022 drilling program of 45,000 meters at its flagship Corner Bay property, located in the Chibougamau mining camp, approximately 40 kilometers by road from Chibougamau, Québec. As of August 10, 2022, Doré Copper has completed 37 holes totaling 36,135 meters and is reporting today the assay results from 14 holes.

Drilling Highlights

Main Vein below dyke

CB-22-71: 6.7 meters of 5.41% Cu, 0.45 g/t Au, and 29.7 g/t Ag, including 1.6 meters of 12.14% Cu, 0.10 g/t Au, and 67.6 g/t Ag
CB-22-90: 6.2 meters of 3.10% Cu and 10.2 g/t Ag, including 2.8 meters of 6.14% Cu, 0.19 g/t Au, and 20.2 g/t Ag
CB-22-69: 3.4 meters of 2.54% Cu, 0.24 g/t Au, 8.6 g/t Ag, and 1,038 ppm Mo

Main Vein above dyke

CB-22-84: 3.0 meters of 3.39% Cu, 25.2 g/t Ag, and 419 ppm Mo
CB-22-89: 4.6 meters of 2.54% Cu, 20.3 g/t Ag, and 346 ppm Mo

Ernest Mast, President and CEO of Doré Copper, commented, “The second set of assay results from the infill drilling program at Corner Bay continue to confirm the continuity of the copper mineralization. In addition, a representative bulk sample of ¼ core is being shipped to a supplier’s facility in the United States for additional ore sorting tests. This is to confirm the sorter performance that was reported in the PEA and to produce material for additional communition, flotation and geochemical testwork.”

Corner Bay Drilling Program

The 2022 drilling program is designed to infill the Corner Bay deposit at a 50 to 60 meter spacing from surface to a depth of 1,000 meters. From today’s results, six holes intersected the Main Vein above the dyke and the remaining eight holes intersected the Main Vein below the dyke, with three holes intersecting the East Vein with lower grade copper mineralization. The results are continuing to confirm the continuity of the copper mineralization for the Main Vein above and below the dyke (Figure 1 and Table 1).

Corner Bay Deposit

Table 1. Corner Bay Recent Drill Assays Highlights from the 2022 Drill Program

Hole	From (m)	To (m)	Width¹ (m)	Cu (%)	Au (g/t)	Ag (g/t)	Mo (ppm)	Zone
CB-22-65	991.8	993.5	1.7	3.63	0.37	15.3	1,060	MV below dyke
	1,007.6	1,010.4	2.8	1.42	0.38	6.5	452	MV below dyke
CB-22-69	1,027.4	1,030.8	3.4	2.54	0.24	8.6	1,038	MV below dyke
CB-22-71	924.0	930.7	6.7	5.41	0.45	29.7	209	MV below dyke
Including	929.1	930.7	1.6	12.14	0.10	67.6	86	“
CB-22-72	1,070.6	1,073.0	2.4	1.29	0.15	4.5	218	MV below dyke
CB-22-73	684.4	685.6	1.2	1.15	0.09	-	-	MV above dyke
CB-22-80	987.5	989.4	1.9	1.93	0.22	6.9	403	MV below dyke
CB-22-81	593.3	595.1	1.8	0.54	0.14	6.0	111	MV above dyke
CB-22-84	658.1	661.1	3.0	3.39	0.22	25.2	419	MV above dyke
Including	658.8	660.2	1.4	7.17	0.46	52.9	888	“
	868.4	869.5	1.1	2.03	0.09	6.4	384	East Vein
CB-22-85	981.4	984.5	3.1	1.56	0.20	5.1	549	MV below dyke
CB-22-87	554.0	555.5	1.5	1.18	0.2	15.9	887	MV above dyke
	565.8	568.0	2.2	1.21	0.19	12.0	75	MV above dyke
CB-22-88	1,128.0	1,129.6	1.6	1.48	0.09	5.6	359	MV below dyke
CB-22-89	704.5	709.1	4.6	2.54	0.12	20.3	346	MV above dyke
CB-22-90	1,006.3	1,012.5	6.2	3.10	0.10	10.2	161	MV below dyke
Including	1,008.7	1,011.5	2.8	6.14	0.19	20.2	283	“
CB-22-91	620.9	623.5	2.6	2.35	0.05	15.1	100	MV above dyke

The true width of the structures intersected is estimated at approximately 60-75% of the downhole width. Main Vein = MV.

Drilling and Quality Control

QA/QC is done in house by Doré Copper Geologists with oversight from the Vice President Exploration. The check samples (blanks and standards – 4% of total samples with another 2% of core duplicates) that were inserted into the sample batches are verified against their certified values and are deemed a pass if they are within 3 standard deviations of the certified value. The duplicates are evaluated against each other to determine mineralization distribution (nugget). If there are large discrepancies in the check samples, then the entire batch is requested to be re-assayed.

About Doré Copper Mining Corp.

For further information, please contact:

Ernest Mast
President and Chief Executive Officer
Phone: (416) 792-2229
Email:

Laurie Gaborit
VP Investor Relations
Phone: (416) 219-2049
Email:

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Technical report titled “Preliminary Economic Assessment for the Chibougamau Hub-and-Spoke Complex, Québec, Canada” dated June 15, 2022, in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”). The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.

Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “forward-looking statements” under applicable Canadian securities legislation. Forward-looking statements include predictions, projections and forecasts and are often, but not always, identified by the use of words such as “seek”, “anticipate”, “believe”, “plan”, “estimate”, “forecast”, “expect”, “potential”, “project”, “target”, “schedule”, “budget” and “intend” and statements that an event or result “may”, “will”, “should”, “could” or “might” occur or be achieved and other similar expressions and includes the negatives thereof. Specific forward-looking statements in this press release include, but are not limited to aiming to be the next copper producer in Québec with an initial production target of +50 Mlbs of copper equivalent annually; implementing a hub-and spoke operation model; plans to commence a feasibility study and submit permit applications in Q3 2022.

Doré Copper reports high-grade copper results from 2022 infill drilling program at its flagship Corner Bay copper-gold project

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Toronto, Ontario – July 11th, 2022 – Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSXV: DCMC; OTCQX: DRCMF; FRA: DCM) is pleased to announce the first set of results from its 2022 drilling program of 45,000 meters at its flagship Corner Bay property, located in the Chibougamau mining camp, approximately 40 kilometers by road from Chibougamau, Québec. As of July 4, 2022, Doré Copper has completed 32 holes totaling 33,900 meters and is reporting today the results from 13 holes.

Drilling Highlights

Main Vein above dyke

CB-22-77: 2.6 meters of 2.33% Cu, and 10.7 g/t Ag

Main Vein below dyke

CB-22-63: 2.5 meters of 5.07% Cu, 0.17 g/t Au, 14.3 g/t Ag and 889 ppm Mo

CB-22-64: 13.3 meters of 3.47% Cu, 0.13 g/t Au and 20.0 g/t Ag, including 1.8 meters of 11.07% Cu, 0.17 g/t Au, 57.3 g/t Ag and 3.1 meters of 5.15% Cu, 0.24 g/t Au and 29.6 g/t Ag

CB-22-68: 10.9 meters of 4.24% Cu, 0.62 g/t Au, 15.2 g/t Ag, and 1,226 ppm Mo, including 4.0 meters of 7.36 % Cu, 0.45 g/t Au and 23.4 g/t Ag

CB-22-76: 5.4 meters of 3.37% Cu, 1.0 g/t Au, 23.7 g/t Ag and 1,597 ppm Mo

CB-22-78: 4.7 meters of 2.3 % Cu, 0.14 g/t Au and 7.7 g/t Ag

Ernest Mast, President and CEO of Doré Copper, commented, “As part of the feasibility study, Dore Copper is completing a 45,000 meter drilling program in 2022 at its flagship high-grade Corner Bay copper-gold deposit. Results from the first infill holes are confirming the continuity of the copper mineralization. The next part of the program will target the infill and expansion drilling of the highest grade part of the deposit where a number of intercepts returned greater than 8% copper and were announced during the second half of 2021.”

Corner Bay Drilling Program

The 2022 drilling program is designed to infill the Corner Bay deposit at a 50 to 60 meter spacing from surface to a depth of 1,000 meters and to potentially expand the higher grade copper zone in the Main Vein above the dyke.

From today’s results, three holes intersected the Main Vein above the dyke and the remaining 10 holes intersected the Main Vein below the dyke. The results are confirming the continuity of the copper mineralization at Corner Bay (Figure 1 and Table 1).

Corner Bay Deposit

In the Preliminary Economic Assessment announced on May 10, 2022, the Mineral Resource estimate for Corner Bay contains an Indicated Resource of 2.68 Mt at 2.66% Cu and 0.26 g/t Au containing 157 million pounds of copper and 22,000 ounces of gold and an Inferred Resource of 5.86 Mt at 3.43% Cu and 0.27 g/t Au containing 443 million pounds of copper and 51,000 ounces of gold, based on a cut-off grade of 1.3% Cu and a copper price of US$3.75 per pound (refer to Technical Report dated June 15, 2022). Silver and molybdenum have not been included in the previous Mineral Resource estimates. Due to their consistent presence in the intersections, they will be included in future estimates.

Figure 1. Long Section of the Corner Bay Deposit Showing the 2022 Drill Results

Table 1. Corner Bay Drill Assays Highlights from the 2022 Drill Program

Hole	From (m)	To (m)	Width¹ (m)	Cu (%)	Au (g/t)	Ag (g/t)	Mo (ppm)	Zone
CB-22-75	626.5	628.7	2.2	1.43	0.07	14.0	107	MV above dyke
CB-22-77	549.0	551.6	2.6	2.33	0.08	10.7	382	MV above dyke
CB-22-70	628.5	632.0	3.5	1.03	0.06	7.4	-	MV above dyke
CB-22-63	1107.2	1109.7	2.5	5.07	0.17	14.3	889	MV below dyke
CB-22-64	905.8	919.1	13.3	3.47	0.13	20.0	163	MV below dyke
Including	909.3	911.1	1.8	11.07	0.17	57.3	160
	914.2	917.3	3.1	5.15	0.24	29.6	420
CB-22-66	895.4	897.8	2.4	1.47	0.18	12.1	365	MV below dyke
CB-22-67	991.8	994.1	2.3	1.49	0.50	5.0	466	MV below dyke
CB-22-68	924.6	935.5	10.9	4.24	0.62	15.2	1,226	MV below dyke
Including	931.5	935.5	4.0	7.36	0.45	23.4	573

CB-22-74	982.6	984.7	2.1	1.19	0.16	4.8	132	MV below dyke
CB-22-76	954.8	960.2	5.4	3.37	1.00	23.7	1,597	MV below dyke
CB-22-78	1049.1	1053.8	4.7	2.30	0.14	7.7	150	MV below dyke
CB-22-79	1051.7	1054.2	2.5	2.00	0.13	6.1	1,011	MV below dyke
CB-22-82	1123.2	1125.6	2.4	2.25	0.05	5.1	335	MV below dyke

The true width of the structures intersected is estimated at approximately 55-60% of the downhole width.

Drilling and Quality Control

QA/QC is done in house by Doré Copper Geologists with oversight from the Vice President Exploration. The check samples (blanks and standards – 4% of total samples with another 2% of core duplicates) that were inserted into the sample batches are verified against their certified values and are deemed a pass if they are within 3 standard deviations of the certified value. The duplicates are evaluated against each other to determine mineralization distribution (nugget). If there are large discrepancies in the check samples, then the entire batch is requested to be re-assayed.

About Doré Copper Mining Corp.

Doré Copper Mining Corp. aims to be the next copper producer in Québec with an initial production target of +50 Mlbs of copper equivalent annually by implementing a hub-and spoke operation model with multiple high-grade copper-gold assets feeding its centralized Copper Rand mill. The Corporation has delivered its PEA in May 2022 and plans to commence a feasibility study and submit permit applications in Q3 2022.

The Corporation has consolidated a large land package in the prolific Lac Doré/Chibougamau and Joe Mann mining camps that has produced 1.6 billion pounds of copper and 4.4 million ounces of gold¹. The land package includes 13 former producing mines, deposits and resource target areas within a 60-kilometre radius of the Corporation’s Copper Rand Mill.

For further information, please contact:

Ernest Mast
President and Chief Executive Officer
Phone: (416) 792-2229
Email:

Laurie Gaborit
VP Investor Relations
Phone: (416) 219-2049
Email:

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “forward-looking statements” under applicable Canadian securities legislation. Forward-looking statements include predictions, projections and forecasts and are often, but not always, identified by the use of words such as “seek”, “anticipate”, “believe”, “plan”, “estimate”, “forecast”, “expect”, “potential”, “project”, “target”, “schedule”, “budget” and “intend” and statements that an event or result “may”, “will”, “should”, “could” or “might” occur or be achieved and other similar expressions and includes the negatives thereof. Specific forward-looking statements in this press release include, but are not limited to aiming to be the next copper producer in Québec with an initial production target of +50 Mlbs of copper equivalent annually; implementing a hub-and spoke operation model; plans to commence a feasibility study and submit permit applications in Q3 2022.

Doré Copper files technical report for its Preliminary Economic Assessment of Hub-and-Spoke operation in Chibougamau, Quebec

Download PDF English | French

Toronto, Ontario – June 15, 2022 – Doré Copper Mining Corp. (the “Corporation” or “Doré Copper“) (TSXV: DCMC; OTCQX: DRCMF; FRA: DCM) is pleased to announce that further to its news releases dated May 10, 2022, it has filed a technical report titled “Preliminary Economic Assessment for the Chibougamau Hub-and-Spoke Complex, Québec, Canada” in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects (“NI 43-101”)

A copy of the technical report is available on the Company’s profile on SEDAR at www.sedar.com and on the Company’s website at https://www.dorecopper.com. The Technical Report focuses on the results of the PEA which includes the Corner Bay, Devlin, and Joe Mann projects feeding the Company’s centralized Copper Rand mill, all located in the vicinity of Chibougamau, Québec.

Qualified Persons

The Technical Report was prepared by BBA Inc. with several consulting firms contributing to sections of the study, including SLR Consulting (Canada) Ltd., SRK Consulting (Canada) Inc. and WSP Inc.

About Doré Copper Mining Corp.

Doré Copper Mining Corp. aims to be the next copper producer in Québec with an initial production target of +50 Mlbs of copper equivalent annually by implementing a hub-and spoke operation model with multiple high-grade copper-gold assets feeding its centralized Copper Rand mill. The Corporation has delivered its PEA in May 2022 and plans to commence a feasibility study and submit permit applications by mid-year.

The Corporation has consolidated a large land package in the prolific Lac Doré/Chibougamau and Joe Mann mining camps that has produced 1.6 billion pounds of copper and 4.4 million ounces of gold¹. The land package includes 13 former producing mines, deposits and resource target areas within a 60-kilometre radius of the Corporation’s Copper Rand Mill.

For further information, please contact:

Ernest Mast
President and Chief Executive Officer
Phone: (416) 792-2229
Email:

Laurie Gaborit
VP Investor Relations
Phone: (416) 219-2049
Email:

For more information, please visit: www.dorecopper.com

Facebook: Doré Copper Mining
LinkedIn: Doré Copper Mining Corp.
Twitter: @DoreCopper
Instagram: @DoreCopperMining

Sources for historic production figures: Economic Geology, v. 107, pp. 963–989 – Structural and Stratigraphic Controls on Magmatic, Volcanogenic, and Shear Zone-Hosted Mineralization in the Chapais-Chibougamau Mining Camp, Northeastern Abitibi, Canada by François Leclerc et al. (Lac Dore/Chibougamau mining camp) and NI 43-101 Technical Report on the Joe Mann Property dated January 11, 2016 by Geologica Groupe-Conseil Inc. for Jessie Ressources Inc. (Joe Mann mine).

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “forward-looking statements” under applicable Canadian securities legislation. Forward-looking statements include predictions, projections and forecasts and are often, but not always, identified by the use of words such as “seek”, “anticipate”, “believe”, “plan”, “estimate”, “forecast”, “expect”, “potential”, “project”, “target”, “schedule”, “budget” and “intend” and statements that an event or result “may”, “will”, “should”, “could” or “might” occur or be achieved and other similar expressions and includes the negatives thereof. Specific forward-looking statements in this press release include, but are not limited to aiming to be the next copper producer in Québec with an initial production target of +50 Mlbs of copper equivalent annually; implementing a hub-and spoke operation model; plans to commence a feasibility study and submit permit applications in Q3 2022.