Great Panther Mining (TSX:GPR; NYSE:GPL)(“Great Panther”, the “Company”) is pleased to announce the successful commissioning of the supplemental modular liquid oxygen supply system (“Supplemental Oxygen”) at the Tucano Gold Mine in Brazil
Great Panther Mining (TSX:GPR; NYSE:GPL)(“Great Panther”, the “Company”) is pleased to announce the successful commissioning of the supplemental modular liquid oxygen supply system (“Supplemental Oxygen”) at the Tucano Gold Mine in Brazil (“Tucano”), which is designed to allow for the processing of the higher-grade sulphide ore produced by the mine and achieve designed and budgeted gold recoveries.
The Supplemental Oxygen has been operational since start of May and has successfully processed sulfide ore at grades as high as 2 grams per tonne gold (“g/t Au”) with high (94%) recoveries. The following provides a summary of the plant performance.
| Tucano Plant Report Summary | (1) Q1 – 2019 | April, 2019 | May 1 – 13, 2019 |
| Dry ore milled (tonnes) | 747,200 | 254,700 | 83,201 |
| Feed grade (g/t Au) | 1.11 | 0.98 | 1.75 |
| Gold recovery (%) | 88.0 | 87.6 | 94.5 |
| Gold recovered (oz) | 23,470 | 7,020 | 4,429 |
| (1) Full first quarter summary from January 1 – March 31, 2019. | |||
Prior to the installation of the Supplemental Oxygen, Tucano was limited to processing primarily lower grade oxide material. Preliminary results demonstrate the ability to process Tucano’s highest-grade sulfide materials with recovery rates exceeding planned rates.
James Bannantine, President and CEO stated: “We are very happy to successfully conclude what was probably the most important single element in the Tucano turnaround, which is ongoing and progressing well. This is also a critical accomplishment for the new Great Panther Mining team, as we integrate our teams into one.”
Processing plant availability and utilization for the period of May 1st to 13th was lower than designed capacity levels to facilitate testing and optimization during the commissioning of the Supplemental Oxygen, and due to higher than planned maintenance of the SAG mill. As a reference, gold produced from May 1st to May 13th was based on plant utilization of 73%. Gold production is expected to increase during the month of May as the SAG mill availability improves and the mill is turned back up to full capacity.
The addition of the Supplemental Oxygen completes the functionality of the recent plant upgrade of ball mill, thickener, additional CIL tankage and oxygen supply to handle the mine’s sulfide production going forward.
ABOUT GREAT PANTHER
Great Panther Mining Limited is an intermediate precious metals mining and exploration company listed on the Toronto Stock Exchange trading under the symbol GPR, and on the NYSE American under the symbol GPL. Great Panther operates three mines including the Tucano Gold Mine in Amapá State, Brazil, and two primary silver mines in Mexico: the Guanajuato Mine Complex and the Topia Mine. Great Panther is also evaluating the restart of the Coricancha project in Peru and expects to make a decision on whether or not to restart the project in June 2019.
CAUTIONARY STATEMENT ON FORWARD-LOOKING STATEMENTS
This news release contains forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995 and forward-looking information within the meaning of Canadian securities laws (together, “forward-looking statements”). Such forward-looking statements may include, but are not limited to, statements regarding expectations of increasing capacity and gold recoveries, increased availability of the SAG mill, increased gold production, and timing or positive outcome of a production decision for the Coricancha project.
These forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements expressed or implied by such forward-looking statements to be materially different. Such factors include, among others, risks and uncertainties relating to potential political and social risks involving Great Panther’s operations in a foreign jurisdiction, the potential for unexpected costs and expenses, fluctuations in metal prices, fluctuations in currency exchange rates, physical risks inherent in mining operations, operating or technical difficulties in mineral exploration, changes in project parameters as plans continue to be refined, and other risks and uncertainties, including those described in respect of Great Panther, in its annual information form for the year ended December 31, 2018 and material change reports filed with the Canadian Securities Administrators available at www.sedar.com and reports on Form 40-F and Form 6-K filed with the Securities and Exchange Commission and available at www.sec.gov.
There is no assurance that such forward looking statements will prove accurate; results may vary materially from such forward-looking statements; and there is no assurance that the Company will be able to identify and acquire additional projects or that any projects acquired will be successfully developed. Readers are cautioned not to place undue reliance on forward looking statements. The Company has no intention to update forward looking statements except as required by law.
For further information: Alex Heath, CFA, Director, Corporate Development & Investor Relations, Toll free: 1 888 355 1766, Tel: +1 604 638 8956, aheath@greatpanther.com, www.greatpanther.com
Related Links
Click here to connect with Great Panther Mining (TSX:GPR; NYSE:GPL) for an Investor Presentation.
Source: www.newswire.ca
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GoldInxs Mining Corp. (TSXV:INXS, OTCQB: INXGF) provides investors with exposure to early-stage gold-copper exploration in British Columbia, leveraging a portfolio of high-potential projects in Tier 1 jurisdictions, within established gold districts, surrounded by strong regional infrastructure and led by an experienced management team committed to accelerating discovery and delivering shareholder value.

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Overview
GoldInxs Mining Corp. is a discovery-focused mineral exploration company dedicated to identifying and advancing high-potential copper-gold assets in proven geological belts. The Company's strategy centers on acquiring overlooked and underexplored projects with large-scale potential, applying modern exploration techniques to rapidly evaluate targets and unlock shareholder value through discovery.
The Company’s. common shares started trading on the TSX Venture Exchange in July 2026 under the symbol INXS, positioning itself to capitalize on favorable copper and gold market fundamentals.

Copper demand is forecasted to grow steadily through 2030, with the global copper market expected to expand to over US$340 billion by 2030, driven by electric vehicles, renewable energy and infrastructure growth.
On the other hand, gold continues to provide a safe-haven hedge against policy risks and market volatility, making GoldInxs’ dual focus on copper and gold particularly compelling for investors.
The Company’s portfolio is anchored by two priority projects: the Fishpot Project in central British Columbia, interpreted as an emerging, large epithermal system with strong infrastructure access and jurisdiction quality as well as early indications of blackwater-style mineralization, and the non-core Millar Project in the prolific B.C Golden Triangle, a district renowned for world-class discoveries. While surrounding deposits attracted billions of dollars in investment, Fishpot received only sporadic historical exploration despite widespread hydrothermal alteration and numerous anomalous gold, silver and copper results. Artemis Gold’s Blackwater Mine has announced tripling production with an intended $1.56B investment, which sits only 65 km from the Fishpot property.
Backed by a management team with expertise in exploration, project development and capital markets, GoldInxs is positioned to rapidly advance its assets, deliver near-term exploration catalysts and create shareholder value through discovery and strategic growth.
Company Highlights
- Mining-friendly jurisdiction: Projects are in British Columbia, which ranked second in Canada and 20th globally in the 2025 Fraser Institute investment attractiveness rankings.
- Flagship and district-scale assets: Portfolio is anchored by the flagship Fishpot Project (“Fishpot”) in central B.C., showing strong geological indicators of mineralization, blackwater-style mineralization potential and immense exploration upside potential with only 378 meters of historical drilling. Fishpot is strategically located in the same region as Artemis Gold’s Blackwater Mine and Evolution Mining’s optioned Clisbako property.
- Clear path to 2026 catalysts: GoldInxs secured a drill permit for an upcoming maiden 2,000-metre drill program at Fishpot, near-term exploration programs are designed to define mineralized systems, outline blackwater-style potential and create shareholder value following the completion of a 3D IP survey and drill targeting.
Key Projects
Fishpot Project


The Fishpot Project represents the cornerstone asset within the GoldInxs portfolio. Covering up to 5,500 hectares in Central British Columbia, and located ~95 km north of Quesnel, Fishpot hosts a large hydrothermal alteration system that exhibits many of the geological characteristics observed in major epithermal and intrusion-related gold systems throughout the region. Fishpot encompasses five claim blocks, held under an option to acquire 100 percent subject to a 2 percent NSR, representing a significant exploration opportunity in a highly prospective region.
Fishpot represents a largely untested hydrothermal mineral system where multiple independent exploration datasets, including gold-silver-copper surface geochemistry, alteration and geology, airborne magnetics, 3D IP chargeability/resistivity and identified epithermal-to-potential-porphyry target environments, are converging to define drill targets, despite only 378 metres of historical drilling across two holes.
Fishpot is situated within the highly prospective Stikine Terrane and is underlain by Hazelton Group volcanic rocks and intrusive units comparable to those associated with several significant deposits in British Columbia. Extensive quartz-sericite alteration, hydrothermal brecciation, pyrite mineralization and multi-element geochemical anomalies support the interpretation of a robust mineralizing system. Fishpot is strategically positioned near active and historical mining operations, including Artemis Gold’s Blackwater Deposit, Newton Gold Project, Capoose and 3Ts Project, underscoring its large-scale discovery potential. Importantly, based on early-exploration results, Fishpot shares several regional geological characteristics commonly associated with Blackwater-style gold systems, including felsic volcanics, strong alteration, pyrite-rich mineralization and gold-silver geochemical associations. Despite the similarities the Company cannot yet make any formal connections to the surrounding properties, nor can they guarantee that such deposits exist on their ground.
Fishpot Exploration Technology: GoldInxs advanced its Fishpot targeting program by combining a conventional 3D IP survey with emerging Virtual DRILL™ remote-sensing technology as an additional targeting layer, using multiple geological, geochemical and geophysical datasets to refine and prioritize targets ahead of a planned ~2,000-metre drill program.
Fishpot Drill Permit & Expansion: GoldInxs has received the required drilling permits and expanded Fishpot to 5,509 hectares, positioning the Company to proceed with its inaugural ~2,000-metre modern drill program on a property that has seen very limited historical drilling, while refining targets through integrated geological, geochemical and geophysical data.
Despite multiple encouraging exploration indicators, Fishpot has been subjected to only two historic drill holes totaling 378 metres, leaving the broader mineral system largely untested and providing significant leverage to future exploration success.
Recent exploration completed by GoldInxs generated the highest reported gold value on Fishpot to date, returning up to 5.65 g/t Au from surface sampling, while airborne geophysical surveys identified multiple coincident magnetic and geochemical anomalies that have strengthened the Company's exploration model and target pipeline.
The 2025 program returned rock samples of up to 5.65 g/t Au, 11.35 g/t Ag and 0.42% Cu, while historical work reportedly returned up to 4.36 g/t Au and 3.2% Cu.
The property exhibits the potential low-sulphidation epithermal targets at Fishpot North, intermediate-sulphidation signatures at Fishpot East, and a large central magnetic high being evaluated for potential porphyry mineralization at depth. The Company is focused on finalizing drill targeting and preparing for the inaugural diamond drill campaign at Fishpot in the coming months following completion of the IP survey. GoldInxs is preparing to drill-test a 5,509-hectare, largely undrilled hydrothermal system in central British Columbia where high-grade surface gold-silver-copper results, Blackwater-style geological characteristics and multiple coincident geophysical targets have converged to define a portfolio of high-priority exploration targets.
Management Team
Nick Michael – President and CEO
Mr. Michael is a veteran mining executive and technical director with over 37 years of global experience spanning mine development, engineering and operational leadership. His expertise covers the full project lifecycle, including design, construction, technical due diligence and Independent Engineer assignments for institutional investors and project financiers. He also leads CJK Milling, a company focused on reprocessing historical mine waste to recover discarded gold decades ago, when it was less valuable.
Carlo Rigillo, CPA, Chief Financial Officer
Mr. Rigillo is an experienced Chartered Professional Accountant with over two decades of experience. He holds a Bachelor of Commerce from the University of Toronto.
Barry Miller – Executive Chairman and Director
Mr. Miller brings over 30 years of experience in public markets, including roles as a broker, consultant and financier. He is the founder of GoldInxs and has been actively involved in the resource sector through leadership positions, including as director of Tinova Resources Corp., an exploration company focused on tin and rare earth elements in British Columbia and Alaska.
Tara Asfour - Vice President, Corporate Development and Communications
An executive consultant with over 13 years of experience, Tara Asfour holds expertise in corporate development, capital markets, investor relations and strategic communications. She has led strategic financings, partnerships and offtake initiatives within the resource sector through previous corporate development and investor relations roles with multiple publicly listed companies.
Al Fabbro – Director
With over three decades of experience spanning both the mining and finance sectors, Mr. Fabbro previously led Yorkton Securities’ retail trading department and was part of its Natural Resources Group. He later served as Lead Director of Roxgold Inc. and currently holds executive leadership roles in the mining industry.
Darcy Vis, P.Geo. – VP Exploration and Director
Mr. Vis is an economic geologist with over 17 years of experience in mineral exploration. He has held senior technical roles across multiple exploration companies and is the President of Tripoint Geological Services Ltd. His expertise includes target generation, project evaluation and exploration program execution.
Stephen Soock, P.Eng., CFA – Director
Mr. Soock is a mining professional with nearly 20 years of experience spanning both technical operations and capital markets. He currently serves as Vice President, Investor Relations and Development at Heliostar Metals.
Christopher Kelly, PQS, FCIArb – Director
Mr. Kelly has over 15 years of experience in construction and natural resources. He holds a BSc in Construction Economics and Management and an MSc in Construction Law and Dispute Resolution, and runs Trachtala Consulting Ltd.
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