Questcorp Mining Inc. (CSE: QQQ,OTC:QQCMF) (OTCQB: QQCMF) (FSE: D910) (the ‘Company’ or ‘Questcorp’) is pleased to announce that it’s Maiden drilling program at the La Union gold and silver Project in Sonora, Mexico, is progressing on track and on budget, with three of the five main targets now having some initial drilling and work continuing toward completion of the current program. This update follows the Company’s August 6, 2025 announcement marking the start of the program and August 19 and September 10 news releases chronicling the progress of the program.

Saf Dhillon, President and Chief Executive Officer, states: ‘The maiden drill program has been indicating consistency with past mining, and targets are progressing with positive exploration drilling so far. The drilling is intersecting more quartzite than expected which is favorable for fracture-controlled mineralization. The property Operator, Riverside operations team is handling the current exploration program working with the local rancher and the drilling company to efficiently complete the first phase of this exploration program.’

The first hole at the Union Mine target was drilled southeast beneath historic workings, cutting through the Clemente and Caborca formations-both key host units for past mining at Union as described in the filed NI 43-101 report on SEDAR+ by Questcorp Mining (https://www.sedarplus.ca/csa-party/records/document.html?id=48299afdea2a73385e0513ce830753e11ddf957ee61888b81d46e76fa281ac17).

The hole ended in the Caborca Formation, encountering the distinctive microconglomeratic carbonate unit that historically hosted mineralization at the bottom of the Union Mine. Samples from this hole have been delivered to Bureau Veritas in Hermosillo, Sonora, for gold fire assay, with pulps to be sent to Vancouver, Canada, for ICP-MS analysis with 4-acid digestion to determine silver, base metal, and multi-element values. This consistent analytical approach has been applied since the outset of the Union program to ensure comparability across results.

Drilling then moved to the northern part of the project, testing two target areas: the El Cobre Mine area and the North Union Mine area. Here, holes were oriented perpendicular to stratigraphy and toward interpreted feeder zones along pre-mineral fault structures, primarily within the Clemente Formation. Drilling in these areas has intersected more quartzite than initially modeled, with extensive hematitic oxides-an encouraging sign for potential gold mineralization, possibly linked to sulfides that have been oxidized through supergene weathering. Historic mining in the district targeted oxides only, leaving sulfide zones untested. Riverside plans to evaluate this potential beneath past workings across four target areas: Union Mine, El Cobre, North Union, and Famosa.

The program has now moved south to the Famosa target, where two initial holes are planned to test beneath and along strike from historic workings toward a steeply west-dipping, north-south-trending fault structure, as well as into host rocks on either side of this major structural feature. Famosa produced gold historically, with reported grades exceeding ½ oz/ton Au in archived records referenced in the NI 43-101 report. The Company is encouraged by the target’s potential and is eager to advance drilling here.

Once this initial campaign is completed, follow-up work will integrate assay results, ongoing surface programs, additional induced polarization (IP) surveys, and refined geological interpretations based on stratigraphy and structure observed in drilling. The greater-than-expected quartzite content in the Clemente Formation supports the evolving model of fracture- and quartz-pyrite veinlet-hosted gold mineralization, which will help sharpen targeting at the Union Project. Core from all drilling has been logged, saw-cut, and half-core samples sent for assay, with remaining halves retained for reference and cataloging.

The Company looks forward to completing the Famosa drilling, receiving the pending assay results, and providing further updates as this program progresses.

Figure 1. Geologic map with the tenure of the Union internal concession shown in pink. Manto and chimney type CRD targets are shown as red polygons. Riverside now controls all mineral tenures on this map. The drill program will focus on the Union Mine and areas north of the Union Mine with the initial drill work.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10197/267723_25b092fc440cbaba_001full.jpg

Figure 2. Cross section looking west with conceptual drill targets and schematic drillhole traces. Assays from Riverside’s sampling of rock dump materials from the two mine areas are labeled in black. Red areas are interpreted as manto and chimney target bodies that are now well defined and drill ready. Assays shown on figures 1 and 2 have been previously released and disclosed as summarized below the geochemical QA/QC and in published NI 43-101 Report that Questcorp published 2025 on SEDAR+.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10197/267723_25b092fc440cbaba_002full.jpg

Qualified Person & QA/QC:

The technical content of this news release has been reviewed and approved by R. Tim Henneberry’, P. Geo (BC) a Director of the Company and a Qualified Person under National Instrument 43-101.

Rock samples from previous exploration programs discussed above at the Project were taken to the Bureau Veritas Laboratories in Hermosillo, Mexico for fire assaying for gold. The rejects remained with Bureau Veritas in Mexico while the pulps were transported to Bureau Veritas laboratory in Vancouver, BC, Canada for 45 element ICP/ES-MS analysis using 4-acid digestion methods. A QA/QC program was implemented as part of the sampling procedures for the exploration program. Standards were randomly inserted into the sample stream prior to being sent to the laboratory.

About Questcorp Mining Inc.

Questcorp Mining is engaged in the business of the acquisition and exploration of mineral properties in North America, with the objective of locating and developing economic precious and base metals properties of merit. The company holds an option to acquire an undivided 100-per-cent interest in and to mineral claims totalling 1,168.09 hectares comprising the North Island copper property, on Vancouver Island, B.C., subject to a royalty obligation. The company also holds an option to acquire an undivided 100-per-cent interest in and to mineral claims totalling 2,520.2 hectares comprising the La Union project located in Sonora, Mexico, subject to a royalty obligation.

Certain statements in this news release are forward-looking statements, which reflect the expectations of management regarding completion of survey work at the North Island Copper project. Forward-looking statements consist of statements that are not purely historical, including any statements regarding beliefs, plans, expectations or intentions regarding the future. Such statements are subject to risks and uncertainties that may cause actual results, performance or developments to differ materially from those contained in the statements. No assurance can be given that any of the events anticipated by the forward-looking statements will occur or, if they do occur, what benefits the Company will obtain from them. Except as required by the securities disclosure laws and regulations applicable to the Company, the Company undertakes no obligation to update these forward-looking statements if management’s beliefs, estimates or opinions, or other factors, should change.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/267723

Questcorp Mining Inc. (CSE: QQQ,OTC:QQCMF) (OTCQB: QQCMF) (FSE: D910) (the ‘Company’ or ‘Questcorp’) is pleased to announce that it has been invited to Present on the Emerging Growth Conference Thursday September 25th, 2025.

Questcorp invites individual and institutional investors as well as advisors and analysts, to attend its real-time, interactive presentation on the Emerging Growth Conference.

The next Emerging Growth Conference is presenting on Thursday September 25^th, 2025. This live, interactive online event will give existing shareholders and the investment community the opportunity to interact with the Company’s President, CEO and Founding Director in real time.

Mr. Dhillon will give a presentation and may subsequently open the floor for questions. Please submit your questions in advance to Questions@EmergingGrowth.com or ask your questions during the event and Mr. Dhillon will do his best to get through as many of them as possible.

Questcorp Mining Inc. will be presenting at 12:00PM Eastern time for 30 minutes.

Please register here to ensure you are able to attend the conference and receive any updates that are released.

https://goto.webcasts.com/starthere.jsp?ei=1717091&tp_key=c78a55764a&sti=qqcmf

If attendees are not able to join the event live on the day of the conference, an archived webcast will also be made available on EmergingGrowth.com and on the Emerging Growth YouTube Channel, http://www.YouTube.com/EmergingGrowthConference. We will release a link to that after the event.

About the Emerging Growth Conference
The Emerging Growth conference is an effective way for public companies to present and communicate their new products, services and other major announcements to the investment community from the convenience of their office, in a time efficient manner.

The Conference focus and coverage includes companies in a wide range of growth sectors, with strong management teams, innovative products & services, focused strategy, execution, and the overall potential for long term growth. Its audience includes potentially tens of thousands of Individual and Institutional investors, as well as Investment advisors and analysts.

All sessions will be conducted through video webcasts and will take place in the Eastern time zone.

About Questcorp Mining Inc.

Questcorp Mining is engaged in the business of the acquisition and exploration of mineral properties in North America, with the objective of locating and developing economic precious and base metals properties of merit. The company holds an option to acquire an undivided 100-per-cent interest in and to mineral claims totalling 1,168.09 hectares comprising the North Island copper property, on Vancouver Island, B.C., subject to a royalty obligation. The company also holds an option to acquire an undivided 100-per-cent interest in and to mineral claims totalling 2,520.2 hectares comprising the La Union project located in Sonora, Mexico, subject to a royalty obligation.

ON BEHALF OF THE BOARD OF DIRECTORS,

Saf Dhillon
President & CEO

Forward-looking statements consist of statements that are not purely historical, including any statements regarding beliefs, plans, expectations or intentions regarding the future. Such statements are subject to risks and uncertainties that may cause actual results, performance or developments to differ materially from those contained in the statements. No assurance can be given that any of the events anticipated by the forward-looking statements will occur or, if they do occur, what benefits the Company will obtain from them. Except as required by the securities disclosure laws and regulations applicable to the Company, the Company undertakes no obligation to update these forward-looking statements if management’s beliefs, estimates or opinions, or other factors, should change.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/267524

Osisko Metals Incorporated (the ‘ Company ‘ or ‘ Osisko Metals ‘) ( TSX: OM,OTC:OMZNF ; OTCQX: OMZNF ; FRANKFURT: 0B51 ) is pleased to announce new drill results from the Gaspé Copper Project, located in the Gaspé Peninsula of Eastern Québec.

Osisko Metals CEO Robert Wares commented: ‘The growth potential of the Gaspé Copper deposit continues to be demonstrated with today’s new high-grade results. Holes 30-1106 and 30-1109 reveal the presence of a thick, higher grade tabular zone lying at depth around the E Zone horizon near the eastern margin of our 2024 MRE model. This tabular zone may extend significantly to the east if it correlates to historical drilling results. Our expansion drilling is exceeding expectations, hand-in-hand with the solid infill results on our main resource area.’

New analytical results are presented below (see Table 1), including 26 mineralized intercepts from six new drill holes. Infill intercepts are located inside the 2024 MRE model ( see November 14, 2024 news release ), and are focused on upgrading inferred mineral resources to measured or indicated categories, as applicable. Expansion intercepts are located outside the 2024 MRE model and may potentially lead to additional resources that will be classified appropriately within the next MRE update. Some of the reported intercepts have contiguous shallower infill as well as deeper expansion (noted on Table 1 below as ‘Both’). Maps showing hole locations are available at www.osiskometals.com .

Highlights:

• Drill hole 30-1110
  • 1091.5 metres averaging 0.20% Cu (infill and expansion)
• Drill hole 30-1109
  • 133.7 metres averaging 1.04% Cu (expansion)
• Drill hole 30-1106
  • 159.1 metres averaging 0.45% Cu (expansion)
• Drill hole 30-1103
  • 167.9 metres averaging 0.24% Cu (infill)
• Drill hole 30-1108
  • 134.8 metres averaging 0.22% Cu (infill and expansion)
• Drill hole 30-1111
  • 304.5 metres averaging 0.17% Cu (infill)
  • 206.3 metres averaging 0.33% Cu (expansion)

Table 1: Infill and Expansion Drilling Results

* See explanatory notes below on copper equivalent values and Quality Assurance/Quality Controls.
** ‘Both’ indicates drill holes that have contiguous shallower infill as well as deeper expansion intercepts.

Discussion

Drill holes 30-1103 and 30-1108, both located near the western margin of the 2024 MRE model, cut multiple intersections of mineralized material, 20 to 168 metres thick, distributed in ‘layer cake’ fashion from surface to a vertical depth of 854 and 900 metres, respectively.

Drill hole 30-1106, located near the eastern margin of the 2024 MRE model, cut unmineralized material to a depth of about 600 metres, followed by four mineralized intervals to a vertical depth of 1004 metres. These include a higher-grade interval of 33.8 metres averaging 1.04% Cu and 3.60 g/t Ag located at the level of (and immediately below) the E Zone skarn horizon.

Drill hole 30-1109, also located near the eastern margin of the 2024 MRE model, cut unmineralized material to a depth of about 460 metres, followed by three mineralized intervals to a vertical depth of 860 metres. These also include a higher-grade interval of 133.7 metres averaging 1.04% Cu and 6.48 g/t Ag located in skarn and porcellanites above and below the E Zone skarn horizon.

Both 30-1106 and 30-1109 suggest potential for the presence of a higher-grade tabular deposit around the E Zone horizon that, when combined with historical drilling data, indicates a potential extension eastward towards the previously mined E-32 Zone over a lateral distance of 800 metres.

Drill hole 30-1110, located on top of Copper Mountain near the central part of the 2024 MRE model, intersected 1091.5 metres averaging 0.20% Cu, 1.52 g/t Ag, and 0.017% Mo (0.28% CuEq), including 735.6 metres averaging 0.20% Cu, 1.50 g/t Ag, and 0.015% Mo (infill) and 355.9 metres averaging 0.21% Cu, 1.55 g/t Ag, and 0.021% Mo (expansion), extending mineralization to a vertical depth of 1100 metres and again confirming continuity of mineralization in the core of the deposit.

Drill hole 30-1111, located immediately west of Copper Mountain near the southern lip of the pit, intersected 304.5 metres (from surface) averaging 0.17% Cu and 0.80 g/t Ag followed by three more intersections that included expansion at depth of 206.3 metres averaging 0.33% Cu, 2.39 g/t Ag, and 0.016% Mo, extending mineralization in this area to a vertical depth of 936 metres. The central porphyry intrusion was then intersected and returned 76 metres averaging negligible copper (0.08% Cu) but significant molybdenum (0.023% Mo).

Mineralization at Gaspé Copper is of porphyry copper/skarn type and occurs as disseminations and stockworks of chalcopyrite with pyrite or pyrrhotite and minor bornite and molybdenite. At least five retrograde vein/stockwork mineralizing events have been recognized at Copper Mountain, which overprint earlier prograde skarn and porcellanite-hosted mineralization throughout the Gaspé Copper system. Porcellanite is a historical mining term used to describe bleached, pale green to white potassic-altered hornfels. Subvertical stockwork mineralization dominates at Copper Mountain whereas prograde bedding-replacement mineralization, that is mostly stratigraphically controlled, dominates in the area of Needle Mountain, Needle East, and Copper Brook. High molybdenum grades (up to 0.5% Mo) were locally obtained in both the C Zone and E Zone skarns away from Copper Mountain.

The 2022 to 2024 Osisko Metals drill programs were focused on defining open-pit resources within the Copper Mountain stockwork mineralization ( see May 6, 2024 MRE press release ). Extending the resource model south of Copper Mountain into the poorly-drilled prograde skarn/porcellanite portion of the system subsequently led to a significantly increased resource, mostly in the Inferred category ( see November 14, 2024 MRE press release ).

The current drill program is designed to convert the November 2024 MRE to Measured and Indicated categories, as well as test the expansion of the system deeper into the stratigraphy and laterally to the south and southwest towards Needle East and Needle Mountain respectively. The November 2024 MRE was limited at depth to the base of the L1 skarn horizon (C Zone), and all mineralized intersections below this horizon represent potential depth extensions to the deposit, to be included in the next scheduled MRE update in Q1 2026.

All holes are being drilled sub-vertically into the altered calcareous stratigraphy, which dips 20 to 25 degrees to the north. The L1 (C Zone) the L2 (E Zone) skarn/marble horizons were intersected in most holes, as well as intervening porcellanites that host the bulk of the disseminated copper mineralization.

Table 2: Drill hole locations

Explanatory note regarding copper-equivalent grades

Copper Equivalent grades are expressed for purposes of simplicity and are calculated taking into account: 1) metal grades; 2) estimated long-term prices of metals: US$4.25/lb copper, US$20.00/lb molybdenum, and US$24.00/oz silver; 3) estimated recoveries of 92%, 70%, and 70% for Cu, Mo, and Ag respectively; and 4) net smelter return value of metals as percentage of the price, estimated at 86.5%, 90.7%, and 75.0% for Cu, Mo, and Ag respectively.

Qualified Person

The scientific and technical content of this news release has been reviewed and approved by Mr. Bernard-Olivier Martel, P. Geo. (OGQ 492), an independent ‘qualified person’ as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects (‘NI 43-101’).

Quality Assurance / Quality Control

Mineralized intervals reported herein are calculated using an average 0.12% CuEq lower cut-off over contiguous 20-metre intersections (shorter intervals as the case may be at the upper and lower limits of reported intervals). Intervals of 20 metres or less are not reported unless indicating significantly higher grades . True widths are estimated at 90- 92% of the reported core length intervals.

Osisko Metals adheres to a strict QA/QC program for core handling, sampling, sample transportation and analyses, including insertion of blanks and standards in the sample stream. Drill core is drilled in HQ or NQ diameter and securely transported to its core processing facility on site, where it is logged, cut and sampled. Samples selected for assay are sealed and shipped to ALS Canada Ltd.’s preparation facility in Sudbury. Sample preparation details (code PREP-31DH) are available on the ALS Canada website. Pulps are analyzed at the ALS Canada Ltd. facility in North Vancouver, BC. All samples are analyzed by four acid digestion followed by both ICP-AES and ICP-MS for Cu, Mo and Ag.

About Osisko Metals

Osisko Metals Incorporated is a Canadian exploration and development company creating value in the critical metals sector, with a focus on copper and zinc. The Company acquired a 100% interest in the past-producing Gaspé Copper mine from Glencore Canada Corporation in July 2023. The Gaspé Copper mine is located near Murdochville in Québec ‘ s Gaspé Peninsula. The Company is currently focused on resource expansion of the Gaspé Copper system, with current Indicated Mineral Resources of 824 Mt averaging 0.34% CuEq and Inferred Mineral Resources of 670 Mt averaging 0.38% CuEq (in compliance with NI 43-101). For more information, see Osisko Metals’ November 14, 2024 news release entitled ‘Osisko Metals Announces Significant Increase in Mineral Resource at Gaspé Copper’. Gaspé Copper hosts the largest undeveloped copper resource in eastern North America, strategically located near existing infrastructure in the mining-friendly province of Québec.

In addition to the Gaspé Copper project, the Company is working with Appian Capital Advisory LLP through the Pine Point Mining Limited joint venture to advance one of Canada ‘ s largest past-producing zinc mining camps, the Pine Point project, located in the Northwest Territories. The current mineral resource estimate for the Pine Point project consists of Indicated Mineral Resources of 49.5 Mt averaging 5.52% ZnEq and Inferred Mineral Resources of 8.3 Mt averaging 5.64% ZnEq (in compliance with NI 43-101). For more information, see Osisko Metals ‘ June 25, 2024 news release entitled ‘Osisko Metals releases Pine Point mineral resource estimate: 49.5 million tonnes of indicated resources at 5.52% ZnEq’. The Pine Point project is located on the south shore of Great Slave Lake, NWT, close to infrastructure, with paved road access, an electrical substation and 100 kilometres of viable haul roads.

For further information on this news release, visit www.osiskometals.com or contact:

Don Njegovan, President
Email: info@osiskometals.com
Phone: (416) 500-4129

Cautionary Statement on Forward-Looking Information

This news release contains ‘forward-looking information’ within the meaning of applicable Canadian securities legislation based on expectations, estimates and projections as at the date of this news release. Any statement that involves predictions, expectations, interpretations, beliefs, plans, projections, objectives, assumptions, future events or performance (often, but not always, using phrases such as ‘expects’, or ‘does not expect’, ‘is expected’, ‘interpreted’, ‘management’s view’, ‘anticipates’ or ‘does not anticipate’, ‘plans’, ‘budget’, ‘scheduled’, ‘forecasts’, ‘estimates’, ‘potential’, ‘feasibility’, ‘believes’ or ‘intends’ or variations of such words and phrases or stating that certain actions, events or results ‘may’ or ‘could’, ‘would’, ‘might’ or ‘will’ be taken, occur or be achieved) are not statements of historical fact and may be forward-looking information and are intended to identify forward-looking information. This news release contains forward-looking information pertaining to, among other things: the tax treatment of the FT Units; the timing of incurring the Qualifying Expenditures and the renunciation of the Qualifying Expenditures; the ability to advance Gaspé Copper to a construction decision (if at all); the ability to increase the Company’s trading liquidity and enhance its capital markets presence; the potential re-rating of the Company; the ability for the Company to unlock the full potential of its assets and achieve success; the ability for the Company to create value for its shareholders; the advancement of the Pine Point project; the anticipated resource expansion of the Gaspé Copper system and Gaspé Copper hosting the largest undeveloped copper resource in eastern North America.

Forward-looking information is not a guarantee of future performance and is based upon a number of estimates and assumptions of management, in light of management’s experience and perception of trends, current conditions and expected developments, as well as other factors that management believes to be relevant and reasonable in the circumstances, including, without limitation, assumptions about: the ability of exploration results, including drilling, to accurately predict mineralization; errors in geological modelling; insufficient data; equity and debt capital markets; future spot prices of copper and zinc; the timing and results of exploration and drilling programs; the accuracy of mineral resource estimates; production costs; political and regulatory stability; the receipt of governmental and third party approvals; licenses and permits being received on favourable terms; sustained labour stability; stability in financial and capital markets; availability of mining equipment and positive relations with local communities and groups. Forward-looking information involves risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information. Factors that could cause actual results to differ materially from such forward-looking information are set out in the Company’s public disclosure record on SEDAR+ (www.sedarplus.ca) under Osisko Metals’ issuer profile. Although the Company believes that the assumptions and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not be placed on such information, which only applies as of the date of this news release, and no assurance can be given that such events will occur in the disclosed time frames or at all. The Company disclaims any intention or obligation to update or revise any forward- looking information, whether as a result of new information, future events or otherwise, other than as required by law.

Neither the TSX Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Exchange) accept responsibility for the adequacy or accuracy of this news release. No stock exchange, securities commission, or other regulatory authority has approved or disapproved the information contained herein.

Photos accompanying this announcement are available at

https://www.globenewswire.com/NewsRoom/AttachmentNg/1435bbf7-6580-47e7-9906-c67a832e9456

https://www.globenewswire.com/NewsRoom/AttachmentNg/ffb2d0f5-e4f4-4672-8e6e-e41e07fc2f68