Oroco Continues Expansion of North Zone and Extends Strike Length at Brasiles
October 25, 2022 NEWS RELEASE
OROCO CONTINUES EXPANSION OF NORTH ZONE
AND EXTENDS STRIKE LENGTH AT BRASILES
VANCOUVER, British Columbia – (October 25, 2022) Oroco Resource Corp. (TSX -V: OCO, OTC:
ORRCF) (“Oroco” or “the Company”) announces assay results from an additional 2,668 m of drilling
from Holes N027 through N031 of its drilling program in the North Zone and 1,456 m of drilling from
holes B006 and B007 in the Brasiles Zone (see Table 1 and Figure s 1 and 2 attached, or at the
Company’s website <link>) of its Santo Tomas property (the “ Property”) located in northwestern
Mexico. To view an interactive 3D model that includes the North Zone results announced today, use
the following link or visit Oroco's website: https://vrify.com/companies/oroco-resource-corp
The 2021-2022 North Zone drill program is continuing to confirm and expand the 2009 Gradeshell
model of Cu >0.30% (the “ Gradeshell”) derived from the historical drilling described in the
Company’s 2019 Technical Report. A total of 38 holes (24,850 meters of drilling) have now been
completed in the North Zone, spanning approximately 1,400 m eters of strike length, with
intersections of good-grade mineralization returned in all holes for which the Company has received
assays.
HIGHLIGHTS
• Drill holes N027, N028, N030 and N031 continued the confirmation of the shallow-seated
higher-grade mineralization of the North Zone along the length of the deposit and extended
the confirmation of this zone a further 620 m north and south of the previous most northerly
and southerly drill holes in the zone (see the Company’s news release of October 4, 2022), for
a total of approximately 1,000 m strike length of shallow seated, higher-grade mineralization.
All four holes identified significant higher -grade mineralization intervals extending through
and below the Gradeshell.
• Drill hole N028 extended the confirmed strike length of the North Zone approximately 100 m
further north of N013, the previous most northerly drill hole in the North Zone.
• Drill hole N029 continued the Company’s efforts to expand the mineralized zone to the west
of the Gradeshell. The drill hole returned significant intervals of higher-grade mineralization.
• Drill holes B007 extended the strike length of the Brasiles West zone a further 400 m north,
from prior drill holes, for a total Brasiles Zone strike length of 800 m.
Richard Lock, CEO, commented: “The continued confirmation and expansion of the Gradeshell with
higher grade, shallow seated mineralization is a positive step in achieving our goal of delineating an
economic resource of near-surface mineralization amenable to open-pit mining. We are also pleased
to have mobilized a third drill to the South Zone with the goal of expediting the completion of the
2021-2022 drill program, which is intended to generate a combined North and South Zone miner al
resource estimate in support of our upcoming Preliminary Economic Assessment.”
OROCO RESOURCE CORP.
1201-1166 Alberni Street, Vancouver, BC V6E 3Z3
T: 604.688.6200 F: 604.688.6260
www.orocoresourcecorp.com
DRILLING RESULTS
All North Zone drill holes tested the deposit perpendicular to its structural attitude. Core intervals
are within approximately 10% of true thickness. Core intervals cited for Brasiles Zone drill holes B006
and B007 are near true width. Assay results and cross -sections through the first thirty-one North
Zone drill holes ( 21,379 m of drilling) and the first seven Brasiles Zone drill holes (5,1 16.36 m) are
available at the Company’s website.
Defining Shallow, Higher-grade Mineralization Along the Central Axis of the North Zone
Drill holes N027, N028, N030 and N031 continued the Company’s plan of targeting shallow-seated
mineralization of the North Zone along its length, with the goal of confirming and expanding the
generally higher -grade historical results in this section of the zone. The program has confirmed
good-grade mineralization in a gently north-plunging panel along the Santo Tomas ridge, extending
1,200 meters along the strike at the surface.
Drill hole N02 7 (Plate 57) returned 195.2 m of 0.45% CuEq starting at 17 m from the surface, and
117 m of 0.25% CuEq starting in the Gradeshell and extending below it. Mineralization is shown to
exist across the entire thickness of the Gradeshell and extends on both flanks.
Drill hole N028 (Plate 68) returned 132 m of 0.46% CuEq, extending across the entire thickness of
the Gradeshell.
Drill hole N0 30 (Plate 55) returned two main intervals: 211.6 m of 0.47% CuEq starting at 52.5 m
and extending through the Gradeshell, and 133 m of 0.19% CuEq starting below the Gradeshell and
extending to depth.
Drill hole N0 31 (Plate 50) returned two intervals, with the main interval being 159.6 m of 0. 37%
CuEq starting from 125 m and extending across and slightly below the Gradeshell to 284.6 m, and
34.4 m of 0.28% CuEq starting at 292.0 m.
Extension of the North Zone Deposit to the West
The Company has continued its strategy of testing the hanging wall side of the deposit to the west
of the Gradeshell.
Drill hole N029 (Plate 59) returned three mineralized intervals outside the Gradeshell, with a main
interval of 106.1m of 0.36% Cu.
The Company now has assays for eight drill holes along the hanging wall side of the deposit
confirming good grade mineralization at higher elevations along 750 m of strike length to the west
of the Gradeshell.
Brasiles West Zone
Drill holes B006 and B007 (see Figure 2) continued the Company’s testing of the western fringe of
the Brasiles West Zone, which has strong geological similarities to the North Zone. The Brasiles
West Zone lies beneath a blanket of limestone in a westerly dipping, NE-trending zone of faulting
and monzonite intrusion. Drill Hole B006 did not test the trend and returned 17.9 m of 0.35%
CuEq. Cross-sections have not been provided as the Company’s knowledge of the geology of the
Brasiles Zone is not yet sufficiently advanced for them to be meaningful.
OROCO RESOURCE CORP.
1201-1166 Alberni Street, Vancouver, BC V6E 3Z3
T: 604.688.6200 F: 604.688.6260
www.orocoresourcecorp.com
Drill Hole B007 returned 228.0 m of 0.37% CuEq, in a geological setting similar to the North Zone.
Extensions of Brasiles West Zone are open to the NE.
From B005 in the south, B003 in the center and B007 at the current northern extension of the
Brasiles drill program, the Company has identified significant intervals of good grade
mineralization in a NNE trending Brasiles West zone along a strike length of 800 m.
Table 1: Significant Assay Intervals in the Santo Tomas 2021 -2022 Program, Holes N027 to N031
and B006 to B007:
Drill Hole
No. Dip
From
(m)
To
(m)
Length
(m) Cu % Mo % Au g/t Ag g/t*
CuEQ
%
N027 -55 17.0 212.2 195.2 0.41 0.003 0.049 3.56 0.45
" -55 214.2 332.0 117.8 0.22 0.005 0.014 1.70 0.25
N028 -55 55.0 187.0 132.0 0.40 0.007 0.032 3.09 0.46
" -55 231.0 267.0 36.0 0.20 0.004 0.010 2.22 0.22
N029 -65 249.0 355.1 106.1 0.31 0.010 0.018 2.31 0.36
" -65 365.3 378.8 13.5 0.25 0.006 0.011 1.74 0.28
" -65 408.1 420.0 11.9 0.12 0.016 0.016 1.09 0.19
N030 -55 52.5 264.0 211.6 0.41 0.003 0.065 2.42 0.47
" -55 269.2 287.0 17.8 0.22 0.010 0.072 1.62 0.31
" -55 317.0 450.0 133.0 0.17 0.003 0.010 1.43 0.19
N031 -55 125.0 284.6 159.6 0.32 0.008 0.032 1.80 0.37
" -55 292.0 326.4 34.4 0.26 0.004 0.009 1.43 0.28
B006 -55 409.0 426.9 17.9 0.31 0.001 0.040 3.69 0.35
" -55 478.0 490.0 12.0 0.15 0.001 0.024 2.37 0.17
B007 -55 488.0 716.0 228.0 0.31 0.007 0.051 2.36 0.37
Cu Equivalent (CuEq) % = Cu % + (Mo %*3.75) + (Au ppm*0.752). The commodity prices (3 -year
Average) used are in $US: Cu $3.20 /lb, Mo $12.00 /lb, and Au $1,650.00 /troy oz. * Ag values are
not used in the CuEq calculations.
NORTH ZONE PROGRAM
The Company’s focus in the North Zone for the rest of 2022 is threefold : (1) to continue expanding
the mineralized zone on the hanging wall to the west of the Gradeshell along the length of the
deposit to potentially increase the resource and reduce the am ount of waste rock stripping
required; (2) to continue targeting the shallow-seated mineralization along the central axis (on the
eastern flank of the ridge) of the North Zone to continue to confirm the higher grade shallow-seated
mineralization along the length of the deposit; and (3) to drill the relatively untested 600 m North
Zone extension to the south of holes N015 and N017 (see Figure 1 attached). This area of the North
Zone was sparsely drilled in historical drill programs and is prospective of greater width and depth
than outlined in the historical mode lling. The Company intends to drill with regular spacings to
establish a mineral resource estimate in this area.
SOUTH ZONE PROGRAM
OROCO RESOURCE CORP.
1201-1166 Alberni Street, Vancouver, BC V6E 3Z3
T: 604.688.6200 F: 604.688.6260
www.orocoresourcecorp.com
The Company has now mobilized three drills to confirm and expand the South Zone deposit, with
four drill holes completed to date with assay results pending . Historical drilling, surface geological
mapping, and the Dias Geo 3D Induced Polarization survey have defined near-surface mineralization
projected to 400 m below the surface along 2,500 m of strike length.
BRASILES ZONE PROGRAM
Drill holes B003 to B007 have confirmed the excellent potential of the Brasiles Zone, with the
expectation that further exploration will delineate a significant mineralized deposit similar in nature
to the North Zone. The Company has temporarily suspended the program on the Brasiles Zone to
focus on completing the drilling in the North Zone and South Zone to provide a mineral resource
estimate for the upcoming Preliminary Economic Assessment.
TECHNICAL INFORMATION AND QUALITY CONTROL / QUALITY ASSURANCE
The historical drilling data employed in this current exploration program was the subject of Data
Verification procedures cited in the current Technical Report. Additional drill collar verifications
were performed in the current program, and collar locations fit closely to the 2021/2022 survey
control. Appropriate QA/QC protocols governed geological logging, core sampling, sample
preparation, analyses, an d security during the current program, including quality controls with
duplicates, standards, and blanks. Samples were submitted to the Mexican division of ALS Limited
in Hermosillo, Mexico, for sample preparation to pulps. Sample pulps are then sent to AL S Canada
Ltd. in Vancouver, Canada, for analysis. Total copper and molybdenum contents are determined by
four-acid digestion with AAS finish. Gold was determined by fire assay of a 50 -gram charge, or
alternately, of a 30-gram charge (1 Assay ton).
QUALIFIED PERSON
Mr. Paul McGuigan, P. Geo., of Cambria Geosciences Inc., a “Qualified Person” (as defined in NI 43-
101 -Standards for Disclosure for Mineral Projects ) and a senior consulting geoscientist to the
Company, has reviewed and approved the technical disclosures in this news release. The Company
strictly adheres to CIM Best Practices Guidelines in conducting, documenting, and reporting the
exploration activities on its projects.
ABOUT OROCO:
The Company holds a net 73.2% interest in the collective 1,172.9 ha Core Concessions of the Santo
Tomas Project in NW Mexico and may increase that majority interest up to an 85.5% interest with
a project investment of up to CAD$30 million. The Company also holds a 77.5% interest in 8,154.3
ha of mineral concessions surrounding and adjacent to the Core Concessions (for a total project
area of 23,048 acres). The Project is situated within the Santo Tomas District, which extends from
Santo Tomas up to the Jinchuan Group’s Bahuerachi project, approximately 14 km to the northeast.
Santo Tomas hosts a significant copper porphyry deposit defined by prior exploration spanning the
period from 1968 to 1994. During that time, the property was tested by over 100 diamond and
reverse circulation drill holes, totallin g approximately 30,000 meters. Based on data generated by
these drill programs, a historical Prefeasibility Study was completed by Bateman Engineering Inc. in
1994.
The Santo Tomas Project is located within 160km of the Pacific deep -water port at Topolobam po
and is serviced via highway and proximal rail (and parallel corridors of trunk grid power lines and
OROCO RESOURCE CORP.
1201-1166 Alberni Street, Vancouver, BC V6E 3Z3
T: 604.688.6200 F: 604.688.6260
www.orocoresourcecorp.com
natural gas) through the city of Los Mochis to the northern city of Choix. The property is reached by
a 32 km access road originally built to service Goldcorp’s El Sauzal Mine in Chihuahua State.
For further information, please contact:
Richard Lock, CEO
Oroco Resource Corp.
Tel: 604-688-6200
Email: [email protected]
www.orocoresourcecorp.com
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accept responsibility for the adequacy or accuracy of this
release.
Cautionary Note Regarding Forward-Looking Information
This news release includes certain “forward-looking information” and “forward-looking statements”
(collectively “forward -looking statements”) within the meaning of applicable Canadian securities
legislation. All statements, other than statement s of historical fact included herein, including,
without limitation, statements relating to future events or achievements of the Company, are
forward-looking statements. There can be no assurance that such forward- looking statements will
prove to be accurate, and actual results and future events could differ materially from those
anticipated or implied in such statements. Many factors, both known and unknown, could cause
actual results, performance or achievements to be materially different from the results, performance
or achievements that are or may be expressed or implied by such forward- looking statements.
Readers should not place undue reliance on the forward- looking statements and information
contained in this news release concerning these matters. Oroco does not assume any obligation to
update the forward-looking statements should they change, except as required by law.