Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

MDM.V ·

Madoro Metals Samples up to 12.35 G/T GOLD and 1,250 G/T Silver from Newly Discovered Vein Complex at Yautepec Project

Drill Results Sampling & Geoscience Results

MADORO METALS SAMPLES UP TO 12.35 g/t GOLD AND 1,250 g/t

SILVER FROM NEWLY DISCOVERED VEIN COMPLEX AT

YAUTEPEC PROJECT

FOR RELEASE: JULY 6, 2021 TSXV: MDM

OTC: MSTXF

WKN: A2QQ1X

Vancouver, BC, Canada - Madoro Metals Corp. (“Madoro” or t he “Company”), a mineral

exploration company focused on Oaxaca, Mexico, is pleased to provide an update on recent

exploration results from its Yautepec project. As per the Company’s press release of April 22, 2021,

Madoro added three new mining concessions covering th e southern extension of its project based on

the Company’s exploration model for bonanza-grade Au-Ag polymetallic epithermal systems in

Oaxaca. Madoro had since followed up by dispatching its exploration team to map and sample the

southern portion of its concessions and encountered a previously unknown 7 -km trend of epithermal

alteration and veining along the trace of the southern project of the Yautepec project supervolcano

(caldera). Specific high-potential exploration targets in this are a include the Tecolote, Tortuga-

Guiluna, and Southern Dike-Tepeztate vein systems as illustrated below.

Highlights of assays recently received from these areas include:

• 12.35 g/t Au and 1,250 g/t Ag from a 0.10 meter quartz vein grab sample within a 400 by

200 meter stockwork vein complex (‘Tecolote’ zone)

• 0.54 g/t Ag, 1630 ppm Cu, and 1.26 wt% Zn from a 0.10 meter vein within a 1.1 km dike

and vein system; samples along this zone (‘Southern Dike’) contain up to 0.30 g/t Au

(Summary geochemical tables for each area appended after text)

“Our recent push into unexplored areas at Yautepec has yielded solid and very positive results,

uncovering multiple new mineralized centers, demonstrating proof of concept for our exploration

model,” said David Jones, Madoro Metals’ Explora tion Manager and Director. “A general

characteristic of districts with a good potential for hosting economic ore bodies is that they look

consistently better with work over time; this is certainly the case at Yautepec, and we look forward to

continued good news from the field.”

Of particular interest is that samples from the Tecolote and Southern Dike areas are at or near the

level of fossil surface hot springs (i.e., a ‘paleosurface’), meaning the entire vertical run of potential

bonanza epithermal grades is conserved at depth. Metal anomalies are characteristically weak to

absent in rocks from paleosurface environments, and thus any anomalies are considered highly

favorable as an exploration guide.

The Madoro team has since focused its exploration efforts along the continued western projection of

this mineralized trend, the results from which will be in a subsequent news release.

The Yautepec project is associated with a large ‘supervolcano’ (caldera) that lies within a larger 120-

kilometer volcanic bel t hosting both Fortuna Silver’s (NYSE: F SM) San Jose mine and Gold

Resources Corp. (AMEX: GORO) Arista -Switchback mine. The areas discussed in this release were

recently discovered through systematic application of Madoro’s exploration model for bonanza grade

Au-Ag-polymetallic epithermal systems in Oaxaca.

Summary tables of geochemical results from recent rock chip sampling in the three newly discovered

areas in southern Yautepec project follow (highly anomalous values in bold):

Tecolote Area Rock Chip Sampling Results (n = 34)

Element Maximum

value

Samples with

Significant

values

Lithology of highest value sample

Precious

metals

Ag 1,250 g/t 10 > 0.5 g/t Epithermal vein complex near

paleosurface

Au 12.35 g/t 5 > 0.05 ppm Epithermal vein complex near

paleosurface

Base

metals

Cu 66.6 ppm 7 > 20 ppm Quartz vein breccia

Pb 171 ppm 6 > 20 ppm Quartz vein breccia

Zn 232 ppm 13 > 50 ppm Oxidized quartz veinlets in tuff

Mo 286 ppm 13 > 20 ppm Quartz-veined breccia near paleosurface

Pathfinder

elements

As 8400 ppm 11 > 800 ppm Ferruginous carbonate sinter at

paleosurface

Ba 6180 ppm 14 > 1100 ppm Laminated carbonate sinter at

paleosurface

Hg 0.34 ppm 5 > 0.10 ppm Oxide veinlets in argilllized(?) travertine

at paleosurface

Sb 31.2 ppm 5 > 10 ppm Ferruginous carbonate sinter at

paleosurface

Se 80 ppm 4 > 1 ppm Banded quartz vein

Te 0.88 ppm 4 > 0.4 ppm Oxidized vein breccia

Tl 10.6 ppm 8 > 1.0 ppm Iron-rich carbonate sinter at paleosurface

Tortuga-Guiluna Vein Rock Chip Sampling Results (n = 24)

Element Maximum

value

Samples with

Significant

values

Lithology of highest value sample

Precious

metals

Ag 1.7 g/t 3 > 0.50 g/t Silicified hydrothermal breccia subjacent

to paleosurface

Au 0.06 g/t 3 > 0.02 ppm Silicified hydrothermal breccia subjacent

to paleosurface

Base

metals

Cu 10.8 ppm n/a Oxide vein in tuff subjacent to

paleosurface

Pb 25 ppm 2 > 20 ppm Oxide fracture in argillized tuff subjacent

to paleosurface

Zn 87 ppm 13 > 20 ppm Oxide vein in tuff subjacent to

paleosurface

Mo 63.8 ppm 6 > 10 ppm Oxidized quartz veinlet subjacent to

paleosurface

Pathfinder

elements

As 6120 ppm 6 > 100 ppm Ferruginous carbonate sinter at

paleosurface, possibly w/laminated

oxidized sulfides

Ba 2970 ppm 20 > 100 ppm Oxidized fracture in argillized tuff

subjacent to paleosurface

Hg 21.6 ppm 9 > 0.50 ppm Oxidized and argillized volcanic rock

subjacent to paleosurface

Sb 73.2 ppm 3 > 10 ppm Ferruginous carbonate sinter at

paleosurface, possibly w/laminated

oxidized sulfides

Se 1.2 ppm 2 > 1 ppm Oxidized fracture in tuff subjacent to

paleosurface

Te 0.15 ppm 5 > 0.50 ppm Ferruginous carbonate sinter at

paleosurface, possibly w/laminated

oxidized sulfides

Tl 0.92 ppm 8 > 0.20 ppm Ferruginous carbonate sinter at

paleosurface

Southern Dike – Tepeztate Vein Rock Chip Sampling Results (n = 24)

Element Maximum

value

Samples with

Significant

values

Lithology of highest value sample

Precious

metals

Ag 0.55 g/t 2 > 0.50 g/t Carbonate veined tuff

Au 0.30 g/t 3 > 0.10 ppm Quartz veins in lithic tuff

Base

metals

Cu 1630 ppm 1 Strong oxide veining in fractures

Pb 19.9 ppm na Carbonate vein

Zn 1.26 % 2 > 60 ppm Strong oxide veining in fractures

Mo 8.72 ppm 3 > 3 ppm Brecciated quartz vein in silicified and

argillized rhyolite dike

Pathfinder

elements

As 347 ppm 10 > 100 ppm Oxidized fractures in lithic tuff

Ba 590 ppm 16 > 100 ppm Veined lithic tuff

Hg 0.53 ppm 1 Strong oxide veining in fractures

Sb 3.04 ppm 1 Strong oxide veining in fractures

Se 6.2 ppm 1 Strong oxide veining in fractures

Te 0.05 ppm 1 Strong oxide veining in fractures

Tl 0.48 ppm 2 > 0.26 ppm Oxidized fractures in lithic tuff

Rock chip samples were prepared for analysis at the ALS -Global facility in Guadalajara, Jalisco ,

Mexico, and pulps were then sent for analysis at ALS-Global laboratory in Vancouver, B.C., Canada.

The technical content of this news release has been reviewed and approved by Robert Johansing,

M.Sc., Economic Geologist, and a Qualified Person pursuant to National Instrument 43-101.

About Madoro Metals Corp.

Madoro Metals Corp. (MDM | TSX Venture Exchange; MSTX F | OTC ) is a Mexico -focused

precious metals company actively engaged in exploration and developme nt of three gold-silver

projects in the state of Oaxaca, Mexico. T he Yautepec, Magdalena, and Rama de Oro projects each

consist of large epithermal systems th at are highly prospective for precious metals in structural and

geologic settings similar to those of nearby producing mines. Systematic exploration has advanced

two of the projects towards drilling with the intention of discovering an economic mineral deposit.

On behalf of Madoro Metals Corp.

“Dusan Berka, P. Eng.”

President & CEO

For more information, please contact: Investor Relations via email at [email protected].

www.madorometals.com

#1450 – 789 W. Pender Street

Vancouver, BC, Canada V6C 1H2

Tel: +1 (604) 681-1568

Email: [email protected]

Neither TSX Venture Exchange nor its Regulation Services Pr ovider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

This news release may contain forward- looking statements including but not limited to comments

regarding timing and content of upcoming work programs, geological interpretations, receipt of property

titles, potential mineral recovery processes, etc. Forward -looking statements address future events and

conditions and therefore involve inherent risks and uncertainties. Actual results may differ materially

from those currently anticipat ed in such statements. Madoro Metals Corp. relies upon litigation

protection for forward-looking statements.