RPX Gold Further Extends Zone of High-Grade Mineralization Within the PEA Open Pit

The drilling results will feed an updated mineral resource estimate supporting a prefeasibility study targeted for H1 2027.

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Intersects 25.50 g/t gold over 4.26 metres, including 135.00 g/t gold over 0.71 metres

TORONTO--(BUSINESS WIRE)-- RPX Gold Inc. (“RPX Gold” or the “Company”) (TSXV: RPX) (OTCQB: RDEXF) is pleased to announce the extension of the high-grade gold mineralization zone, within the open pit area identified in the 2026 Preliminary Economic Assessment (“PEA”), with the release of gold (“Au”) assay results from 12 drill holes totalling 2,051 metres (“m”) from its 2026 ongoing drill program at the Wawa Gold Project in Ontario. The Company continues to advance the 20,000 m drilling program planned to support prefeasibility study (“PFS”) work and expects to complete the drilling program by end of October. The results will be included in an updated mineral resource estimate (“MRE”) that will support a PFS, targeted for completion in H1 2027.

Drilling Highlights from the 2026 Drilling program

Highlights (See Figure 1, and Tables 1 and 2):

• 25.50 grams per tonne gold (“g/t Au”) over 4.26 m core length, including 135.00 g/t Au over 0.71 m in SD-26 701
• 3.75 g/t Au over 10.29 m, including 16.37 g/t Au over 1.36 m in SD-26-698
• 4.12 g/t Au over 9.42 m including 16.60 g/t Au over 0.99 m in SD-26-699
• 5.78 g/t Au over 4.64 m including 9.96 g/t Au over 2.41 m in SD-26-696
• 4.29 g/t Au over 5.92 m, including 10.90 g/t Au over 1.60 m in SD-26-704
• 3.79 g/t Au over 6.13 m including 9.56 g/t Au over 0.89 m in SD-26-702A

“Today’s results, together with previously reported high-grade results in the South Pit area, continues to extend high-grade gold mineralization within the 2026 Preliminary Economic Assessment (“2026 PEA”) pit design,” commented Michael Michaud, President and CEO of RPX Gold. “These high-grade zones exist throughout the Wawa Gold project and will be important inclusions during the initial development of the open pits. Stockpiling these high-grade zones will allow us to optimize the grade of feed during the development of the open pits, which we plan will eventually be delivered to a toll mill. The ongoing drilling, designed to collect data for inclusion in the PFS, will be completed near the end of October. We intend to use these results to update the MRE to assess various mining and processing scenarios as part of the PFS.

“Once the PFS-related drilling is completed, we plan to resume exploration drilling of several exciting targets both north and south of the Jubilee deposit. Our updated geologic model confirms that higher grades occur near the intersection of the Jubilee Shear with crosscutting structures, which will be the focus of our “proof of concept” drilling.”

2026 Drilling Program

The ongoing 2026 20,000-m drilling program aims to:

• Complete the conversion of inferred mineral resources to indicated mineral resources in areas associated with the PEA mine plan (see news release dated February 18, 2026);
• Acquire additional data for grade validation, as well as metallurgical and geotechnical purposes in key areas of the underground mine plan, including the 65 area, identified in the PEA;
• Conduct initial follow-up drill testing of several exploration targets identified by previous drilling in areas outside of the current mineral resource:
• Test for high-grade gold mineralization in drilling gaps within the 2026 PEA open pits; and
• Test the gap area between the North and South pits, previously lacking sufficient drilling to model near-surface resources.

Approximately two-thirds of the drilling meterage planned for the PFS has been completed.

The latest drilling has intersected additional high-grade gold mineralization within the South Pit outlined in the PEA, while also identifying additional mineralization in the gap between the South and North pits, as well as confirming gold mineralization within underground areas outlined in the PEA (Figure 1 and Table 1).

Table 1: Complete Assays Results from Drilling

Hole (#)	From (m)	To (m)	Length (m)*	Gold (g/t)	Area (name)
SD-26-686	168.20	172.15	3.95	1.13	South Pit Extension
	195.70	199.20	3.50	2.14
including	195.70	196.65	0.95	5.94
SD-26-688	101.75	102.81	1.06	1.40	South Pit - Ended in Jubilee Mine
SD-26-689	84.00	89.00	5.00	3.53	Gap between South and North pits
including	85.89	86.62	0.73	18.70
including	88.09	88.78	0.69	6.08
SD-26-690	35.24	36.2	0.96	2.50	Surluga Mine Crown Pillar
SD-26-691	191.30	196.64	5.34	2.32	South Pit Extension
including	195.56	196.64	1.08	6.99
SD-26-691A	26.00	27.00	1.00	1.99	HW mineralization
SD-26-695	215.04	221.53	6.49	1.39	65 area
including	219.00	219.00	1.00	3.57
SD-26-696	47.47	52.11	4.64	5.78	South Pit
including	48.59	51.00	2.41	9.96
SD-26-698	41.70	51.99	10.29	3.75	South Pit
including	42.60	43.96	1.36	16.37
and	46.96	48.00	1.04	6.23
SD-26-699	214.42	223.84	9.42	4.12	65 area
including	217.85	218.84	0.99	10.00
	221.81	222.80	0.99	16.60
SD-26-700	35.73	50.31	15.68	1.99	South Pit
including	43.06	44.59	1.53	11.50
SD-26-701	74.17	88.34	14.17	0.68	South Pit
	90.14	94.40	4.26	25.50
including	90.14	90.85	0.71	135.00
and	93.74	94.40	0.66	18.70
SD-26-702A	240.63	246.76	6.13	3.79	65 area
	245.00	246.76	1.76	9.56
SD-26-704	105.23	111.15	5.92	4.29	South Pit
including	109.55	111.15	1.60	10.90

Intercepts are calculated using a 0.40 g/t Au cut-off and a maximum of 6.0 m of internal dilution with no capping applied and are reported over core lengths. True widths are estimated to vary between 50 to 95% of the reported core length in the Jubilee Shear.

Table 2: Drill Hole Location Details

Hole (#)	UTM E (m)	UTM N (m)	Elevation (masl)	Azimuth (°)	Inclination (°)	Length (m)	Assays Status
SD-26-686	668206	5316262	377.6	336	-60	231.0	Completed
SD-26-688	668086	5316396	357.0	85	-58	107.0	Completed
SD-26-689	668199	5316667	352.8	347	-46	135.0	Completed
SD-26-691A	668267	5316453	381.2	3	-48	246.0	Completed
SD-26-695	668422	5316520	386.8	300	-69	250.0	Completed
SD-26-696	668103	5316491	354.5	225	-86	62.9	Completed
SD-26-698	668102	5316490	354.6	257	-53	75.0	Completed
SD-26-699	668422	5316520	386.8	275	-76	255.0	Completed
SD-26-700	668101	5316489	354.5	9	-73	102.0	Completed
SD-26-701	668136	5316470	363.2	270	-85	111.0	Completed
SD-26-702	668446	5316405	376.9	317	-75	276.0	Completed
SD-26-704	668200	5316553	375.8	306	-86	200.0	Completed

Quality Assurance/Quality Control ("QA/QC") Measures

Individual drill core samples are labelled and sawn in half along a pre-marked cutting line. A consistent half-core sample is then placed in an individual numbered plastic sample bag that is sealed. The remaining half-core samples are kept at the Company’s core storage facility located on the Wawa Gold project. Quarter-core duplicates are taken from certain samples to define the variability of gold distribution. Groups of samples are then placed into durable rice bags sealed with security seals to be transported by commercial carrier for analysis at Activation Laboratories Ltd. (Actlabs), Ancaster, Ontario. NQ core assays are obtained by 50-gram fire-assay with a AA finish or by 1-kilogram metallic screen fire assay. The 1-kilogram metallic screen assay method is selected for samples anticipated to contain coarse gold and when the original fire-assay returns results greater or equal to 2.25 g/t Au. The residual coarse reject portions of the samples remain in storage for a minimum 90-day period if further work or verification is needed.

As part of its QA/QC program, RPX Gold inserts external gold standards (low- to high-grade) and blanks every 20 samples and routinely inserts blanks immediately after samples with visible gold. Quarter core duplicates are routinely inserted to evaluate the natural variability of gold mineralization. Assay certificates are sent to at least three members of the senior management team, and they are directly accessible from the WebLIMS portal of Actlabs. Approximately 5% of the pulps and coarse rejects analyzed at Actlabs are sent to Agat Laboratories in Thunder Bay for umpire testing.

Qualified Person

Jean-François Montreuil, P.Geo., Vice President, Exploration at RPX Gold, and a Qualified Person as defined under National Instrument 43-101, has reviewed and approved the scientific and technical information in this press release.

About RPX Gold Inc.

RPX Gold Inc. is a gold exploration company, advancing the flagship Wawa Gold Project located in northwestern Ontario, in the Michipicoten Greenstone Belt of Ontario, and is adjacent to several established gold-producing operations, including those operated by Wesdome Gold Mines Ltd., Alamos Gold Inc. and Hemlo Mining Corp. The Wawa Gold Project benefits from strong local infrastructure and excess regional mill capacity.

The Company is evaluating open-pit operations designed to generate early cash flow to help fund the advancement of the underground operation. This phased approach is aimed at de-risking development, accelerating the time to revenue and minimizing shareholder dilution. The approach is subject to the completion of a number of milestones before a production decision can be made, such as continued drilling and mineral resource definition, conducting additional metallurgical test work, completing a prefeasibility study, continuing baseline studies as well as additional permitting and Indigenous consultations, among other factors.

The Wawa Gold Project currently hosts mineral resources from two mineral deposits, namely the Jubilee Shear and the Minto Mine. The mineral resources include an indicated mineral resource of 22.909 million (“M”) tonnes grading 1.69 g/t Au containing 1,244,000 ounces Au and an inferred mineral resource of 9.951 M tonnes grading 1.59 g/t Au containing 509,000 ounces Au, with both open-pit and underground mining potential. Gold mineralization extends to surface on a historic mining property, which supports the Company’s phased development strategy. Please refer to the technical report entitled “Preliminary Economic Assessment: Wawa Gold Project” with an effective date of February 18, 2026, which is available on www.SEDARPLUS.ca under the Company’s profile for more information.

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

For material information about the Company, visit http://www.rpxgold.com

Cautionary Note Regarding Forward-Looking Information

This news release contains statements which constitute “forward-looking information” within the meaning of applicable securities laws, including statements regarding the plans, intentions, beliefs and current expectations of the Company with respect to future business activities and operating performance.

Forward-looking information is often identified by the words “may”, “would”, “could”, “should”, “will”, “intend”, “plan”, “anticipate”, “believe”, “estimate”, “expect” or similar expressions. Forward-looking information contained in this news release includes, but may not be limited to: statements regarding completion of the drilling program by end of October and the PFS in H12027; higher-grade zones allowing grade optimization of the material delivered to a toll mill during the development of the open pits; updating the mineral resource estimate as a basis to assess various mining and processing scenarios as part of the PFS; resuming exploration drilling of several exciting targets both north and south of the Jubilee deposit once the PFS-related drilling is completed; and the Company evaluating open-pit operations designed to generate early cash flow to help fund the advancement of the underground operation. Investors are cautioned that forward-looking information is not based on historical facts but instead reflects management’s expectations, estimates or projections concerning future results or events based on the opinions, assumptions and estimates of management considered reasonable at the date the statements are made. Such opinions, assumptions and estimates are inherently subject to a variety of risks and uncertainties that could cause actual events or results to differ materially from those projected and undue reliance should not be placed on such information, as unknown or unpredictable factors could have material adverse effects on future results, performance or achievements. Among the key factors that could cause actual results to differ materially from those projected in the forward-looking information are: the Company's expectations in connection with the projects and exploration programs being met, the impact of general business and economic conditions, global liquidity and credit availability on the timing of cash flows and the values of assets and liabilities based on projected future conditions, fluctuating gold prices, currency exchange rates (such as the Canadian dollar versus the United States Dollar), variations in material grade or recovery rates, changes in accounting policies, changes in the Company's mineral reserves and resources, changes in Project parameters as plans continue to be refined, changes in Project development, construction, production and commissioning time frames, the possibility of Project cost overruns or unanticipated costs and expenses, higher prices for fuel, power, labour and other consumables contributing to higher costs and general risks of the mining industry, failure of plant, equipment or processes to operate as anticipated, unexpected changes in mine life, seasonality and weather, costs and timing of the development of new deposits, success of exploration activities, permitting time lines, government regulation of mining operations, environmental risks, unanticipated reclamation expenses, title disputes or claims, and limitations on insurance.

This information contained in this news release is qualified in its entirety by cautionary statements and risk factor disclosure contained in filings made by the Company, including the Company’s financial statements and related MD&A for the year ended July 31, 2025, and the interim financial report and related MD&A for the periods ended October 31, 2025, January 31, 2026 and April 30, 2026, filed with the securities regulatory authorities in certain provinces of Canada and available at www.sedarplus.ca.

Should one or more of these risks or uncertainties materialize, or should assumptions underlying the forward-looking information prove incorrect, actual results may vary materially from those described herein as intended, planned, anticipated, believed, estimated or expected. Although the Company has attempted to identify important risks, uncertainties and factors which could cause actual results to differ materially, there may be others that cause results not to be as anticipated, estimated or intended. The Company does not intend, and does not assume any obligation, to update this forward-looking information except as otherwise required by applicable law.

View source version on businesswire.com: https://www.businesswire.com/news/home/20261007495143/en/

Michael Michaud
President and CEO
(416) 364-7024
mmichaud@rpxgold.com

Manish Grigo
Director of Corporate Development
(416) 569-3292
mgrigo@rpxgold.com

Salisha Ilyas
Investor Relations
(647) 209-9200,
salisha@targetir.com

Source: RPX Gold Inc.