Quantum Critical Metals Reports 150 Meters of 38GPT Gallium, 694GPT Rubidium, 72GPT Niobium, 8GPT Cesium, and 9GPT Tantalum from Diamond Drilling at Discovery Project, Quebec
PO BOX 31880
Steveston Village, BC, V7E 0B5, Canada
tel: 604.428.2900
www.quantumcriticalmetals.com
QUANTUM CRITICAL METALS REPORTS 150 METERS OF 38GPT GALLIUM, 694GPT RUBIDIUM,
72GPT NIOBIUM, 8GPT CESIUM, AND 9GPT TANTALUM FROM DIAMOND DRILLING AT
DISCOVERY PROJECT, QUEBEC
Vancouver, BC / April 9th, 2025 / The Newswire – Quantum Critical Metals Corp. (TSX.V: LEAP) (OTCQB:
ATOXF) (Frankfurt: 86A1) (“Quantum” or the “Company”) is pleased to announce that it has re-examined
its drill core assays at its 100% owned Discovery project, located in the Eeyou Istchee (James Bay) region
of Québec, and has discovered elevated and consistent intervals of gallium, rubidium, cesium, niobium,
and tantalum. Notably, the Company intersected:
● 37gpt gallium, 936gpt rubidium, 72gpt niobium, 8gpt cesium, and 10gpt tantalum over 30
meters from 9m to 39m.
● 38gpt gallium, 694gpt rubidium, 72gpt niobium, 8gpt cesium, 9gpt tantalum over 150 meters
from 44 to 194 meters.
● 37gpt gallium, 651gpt rubidium, 57gpt niobium, 15gpt cesium, 11gpt tantalum over 73 meters
from 17 to 90 meters.
● 44gpt gallium, 801gpt rubidium, 66gpt niobium, 16gpt cesium, 36gpt tantalum over 43 meters
from 16 to 59 meters.
The Company’s 2018 and 2022 drill programs totalled approximately 2,432 meters, and 1,696 meters
respectively, for a total of 4,128 meters across 22 holes (Figure 1). These programs were originally initiated
for gold exploration, but given recent geopoliti cal developments regarding critical metals, the Company
revisited these results to investigate any further potential that may exist than what was originally
considered in the past.
As a function of this review, management believes it has uncovered its second gallium -rubidium-cesium
discovery, joining the NMX East gallium -rubidium-cesium project in the Company’s portfolio
https://www.quantumcriticalmetals.com/blogs/news/durango-reports-107-68-meters-of-38-85-gpt-
gallium-701-gpt-rubidium-24-98-gpt-cesium-and-3-61-gpt-thallium-from-surface-in-diamond-drilling-at-
nmx-east-critical-metals-project. The zones containing anomalous gallium, rubidium, cesium, tantalum
and niobium were mostly pegmatite dykes, however several intercepts contained metasediments, granite
and granophyre rock types. Meanwhile the Company has also identified indicators of a potential VMS
system intersecting these results, including anomalous lead-copper-zinc, which management believes also
warrant further attention and investigation. The Company is encouraged by these results and will provide
more detail once this additional review has been completed.
Summaries of both these drill program results and the Discovery project are below. Access to the full
results are available on the Company’s website at
https://www.quantumcriticalmetals.com/pages/discovery-polymetallic-project-quebec
PO BOX 31880
Steveston Village, BC, V7E 0B5, Canada
tel: 604.428.2900
www.quantumcriticalmetals.com
Figure 1. Discovery property 2018 and 2022 drill program locations.
PO BOX 31880
Steveston Village, BC, V7E 0B5, Canada
tel: 604.428.2900
www.quantumcriticalmetals.com
Summary of Discovery Drill Results
Table 1. 2018 Drill hole intervals with gallium, rubidium, niobium, cesium and tantalum.
PO BOX 31880
Steveston Village, BC, V7E 0B5, Canada
tel: 604.428.2900
www.quantumcriticalmetals.com
Table 2. 2022 Drill hole intervals with gallium, rubidium, niobium, cesium and tantalum.
PO BOX 31880
Steveston Village, BC, V7E 0B5, Canada
tel: 604.428.2900
www.quantumcriticalmetals.com
Table 3. Discovery Property drill hole coordinates, lengths, and orientation.
PO BOX 31880
Steveston Village, BC, V7E 0B5, Canada
tel: 604.428.2900
www.quantumcriticalmetals.com
Figure 2. Discovery property 2018 and 2022 drill program locations and claim area map.
Assay QA/QC
Drill core was sawed in half and core samples were collected every 1 metre. Samples were not collected
across lithology types. Geological plastic bags were used with sample tags placed inside the bag and the
sample ID was written on the outside of the bag using waterproof marker.
In 2018 the samples were shipped to ALS Canada Ltd in Val D’Or for gold and multi-element analysis. Gold
was analysed by fire assay with an ICP-AES finish. Multi elements were analysed by Aqua Regia digestion
and ICP-AES.
PO BOX 31880
Steveston Village, BC, V7E 0B5, Canada
tel: 604.428.2900
www.quantumcriticalmetals.com
In 2022 the samples were sent to Northern Mining Analytical Laboratory (NMAL) in Timmins, Ontario for
gold fire assay – atomic absorption spectrometry and gravimetric analysis. The samples were then sent
on to Activation Laboratories in Ancaster, Ontario. Samples were digested using sodium peroxide fusion
and analysed for trace elements using ICP -OES/MS. For the drilling campaign , a blank, standard and
duplicate were inserted every 30 samples.
A review of the QAQC samples submitted during the drilling campaigns was completed. QAQC samples
were submitted every 30 samples in the sample series, alternating between standards, blanks and
duplicate order. Review of the results indicates that acceptabl e levels of error were received from Act
Labs for the sets of QAQC samples.
About the Discovery Project
The 100% owned Discovery Project spans 6,082 hectares and is located southwest of the past producing
Troilus gold and copper mine (TSX-TLG), as well as the Moblan lithium deposit. The Discovery property is
situated in the Frotet-Evans Greenstone belt, a volcanic-sedimentary assemblage which contains a central
sedimentary basin. The Discovery property is located in the eastern region of the belt (Simard,1987;
Brisson et al.,1997; Brisson et al.,1998 a,b,c). Multiple stages of deformation affected the rocks at
Discovery and produced folds with axes of ENE -WSW to EW in orientation and destroy strike slip faults
with an E-W trend.
Several rounds of geophysical surveys (EM and Mag, AMT, Gravity ) and soil geochemistry lines were
completed on the Discovery property from 2013 to 2017. Exploratory drilling was completed in 2018 and
2022 to try to locate the source of the gold occurrences at surface. In 2014, an exploration campaign was
conducted and returned up to 41.6 and 46.6 gpt gold in channels samples located 36 metres apart. Field
mapping was completed in 2022, 2023, and 2024.
The Discovery Property Polymetallic Potential
The Discovery Project covers an important geological NE -SW regional structure and the Company
recognizes this property for its polymetallic potential.
Gold: found within quartz veins hosted within a metabasalt, up to 46.6 g/pt. Historically, elevated gold
contents have been found in veins which appear to have an orange, brown iron -stained appearance and
are typically deformed, sheared and locally folded. These veins vary from <1 cm in size up to 1m+ scales.
The mineralized veins are known to have a West-East orientation and have a steep dip.
Critical Metals : While reviewing the historical drill data and assays of the Discovery Property, the
geological team noticed anomalous gallium, rubidium, niobium, cesium and tantalum values in the drill
core assays. Gallium, rubidium, cesium, tantalum, niobium have been found in 2018 and 2022 drill holes,
hosted mostly in pegmatites. Over 50 pegmatites outcrops have been mapped to date on the property.
The pegmatites of the property occur in multiple orientations but the majority of large outcrops are found
in a NE/SW orientation and NW/SE orientation. Contacts of pegmatites are typically bulbous indicating a
deep and relatively hot emplacement setting but are typically sharp and show little evidence of extensive
host rock contamination of melt from the pristine pegmatite compositions. Pegmatites are heavily
PO BOX 31880
Steveston Village, BC, V7E 0B5, Canada
tel: 604.428.2900
www.quantumcriticalmetals.com
deformed leading to internal flow -like structures which surround large phenocrysts of microclines.
Pegmatite emplacement predates quartz vein formation of the region as quartz veins can be seen cross
cutting pegmatites at several locations.
Base Metals (Zn, Cu, Ni, Pb): several zinc soil anomalies, banded magnetite in outcrop, outcrops containing
massive and breccia in-fill pyrite and pyrrhotite, and possible Cu, Pb, Ni, Zn anomalies in drill core are also
present and require further investigation.
Sources:
Simard, A. 1987. Stratigraphie et volcanisme dans la partie orientale de la bande volcanosédimentaire
archéenne de Frotet-Evans. Ministère des Ressources Naturelles du Québec.MB 87-17, 300 pp
Brisson H., Gaulin, R., Lefebvre, D., Dion, D -J., Gosselin, C. and Beaumier, M. 1997. Géologie dela région
du lac Assinica, Ministère des Ressources Naturelles. RG 96-11, 28pp.
Brisson, H., Gosselin, C., Fallara, F., Gaulin, R., and Dion, D.J. 1998a. Géologie de la région dulac Théodat
(SNRC 32K/16). Ministère des Ressources naturelles du Quebec. RG 98-07, 24pp.
Brisson, H., Gosselin, C., Fallara, F., Gaulin, R., and Dion, D.J. 1998b. Géologie de la région dulac Evans
(SNRC 32K/15). Ministère des Ressources naturelles du Quebec. RG 98-06, 23pp.
Brisson, H., Gosselin, C., Fallara, F., Gaulin, R., and Dion, D.J. 1998c. Géologie de la région du lac Rocher
(SNRC 32K/09). Ministère des Ressources naturelles du Québec. RG 98-05, 22pp.
Discovery Project Gallium Comparable
The Cordero Deposit in Nevada is possibly the only primary gallium project with a well -defined resource
(15 Mt at 47.7 ppm gallium). Gallium mineralization here is associated with low -sulfidation epithermal
silver-mercury deposits, with Ga hosted in alunit e (KAl(SO 4)2(OH)6) and other aluminous phosphate
minerals.
Source: https://www.geologyforinvestors.com/gallium-the-unicorn-of-critical-mineral-deposits/
Why This Project Matters:
● Breakthrough Discovery in Critical Metals: The Discovery Project now hosts confirmed intervals
of gallium, rubidium, cesium, niobium, and tantalum—strategic critical metals essential to global
supply chains and energy transition technologies.
● Strengthening North American Critical Mineral Security: With China’s recent export restrictions
on several critical elements, discoveries like this in Canada are vital to national and allied efforts
to localize and secure supply chains.
● High-Grade and Long Intervals: Assays returned consistent, elevated grades across long
intercepts—up to 150 meters—with particularly impressive grades of rubidium, gallium, and