Gcm Mining Announces Multiple High-Grade Drill Results from the Ongoing 2021 IN-MINE and Brownfield Drilling Campaigns at Its Segovia Operations; Success Continues ON the Brownfield Projects Including 62.34 G/T Au and 37.3 G/T AG over
401 BAY STREET, SUITE 2400, PO BOX 15, TORONTO, ONTARIO M5H 2Y4 CANADA
PHONE: 416-360-4653; FAX: 416-603-4653
NEWS RELEASE
GCM MINING ANNOUNCES MULTIPLE HIGH-GRADE DRILL RESULTS FROM THE ONGOING 2021
IN-MINE AND BROWNFIELD DRILLING CAMPAIGNS AT ITS SEGOVIA OPERATIONS; SUCCESS
CONTINUES ON THE BROWNFIELD PROJECTS INCLUDING 62.34 G/T AU AND 37.3 G/T AG OVER
0.40 METERS FROM INITIAL DRILLING AT THE LA GUARIDA VEIN
TORONTO, CANADA, Thursday, December 16, 2021 – GCM Mining Corp. (“GCM Mining” or the
“Company”) (TSX: GCM; OTCQX: TPRFF) announced today multiple high-grade intercepts from the latest
130 diamond drill holes, totaling 30,714 meters, from the 2021 in-mine and near-mine drilling programs, as
well as 28 diamond drill holes, totaling 6,946 meters, from the 2021 brownfield drilling programs at it s
Segovia Operations. The Company also announced the assay results from 8 additional kick-off diamond
drill holes (4,509 meters) from the ongoing directional drilling program at the El Silencio Deep Zone.
Significant high-grade intercepts from the latest drill results include:
In-mine and near-mine drilling
• Sandra K: 138.25 g/t Au and 574.0 g/t Ag over 0.33 meters on the Sandra K Techo Vein (SK-ES-006);
• Sandra K: 120.77 g/t Au and 682.0 g/t Ag over 0.54 meters on the Sandra K Techo Vein (SK-IU-179);
• Chumeca: 26.89 g/t Au and 17.2 g/t Ag over 0.55 meters on the Chumeca Footwall Vein (CH-IU-036);
• El Silencio: 128.78 g/t Au and 43.7 g/t Ag over 0.30 meters on the Manto Vein (ES-EU-027);
• El Silencio: 28.20 g/t Au and 24.7 g/t Ag over 0.75 meters on the 450 Vein (ES-MH08-06);
• El Silencio: 66.87 g/t Au and 12.9 g/t Ag over 0.74 meters on the Manto Vein (ES-MH08-10);
• Providencia: 53.66 g/t Au and 26.1 g/t Ag over 0.46 meters on the Providencia Footwall Vein (PV-IU-
286);
• Carla: 25.46 g/t Au with 24.6 g/t Ag over 0.39 meters on the La Gran Colombia Hanging-wall Vein (CA-
ES-023C).
Brownfield drilling
• Vera: 1.83 g/t Au and 432.3 g/t Ag over 0.42 meters on the Lluvias Vein (VER-ES-017);
• Marmajito: 22.56 g/t Au and 21.8 g/t Ag over 0.54 meters on the Marmajito Vein. (MAR-EU-008);
• Manzanillo: 41.22 g/t Au and 58.2 g/t Ag over 0.63 meters on the Manzanillo Vein (MAN-EU-001);
• La Guarida: 62.34 g/t Au and 37.3 g/t Ag over 0.40 meters on the La Guarida Vein (CR-ES-014).
Serafino Iacono, Executive Chairman of GC M Mining , commented , “Our 2021 in-mine and bro wnfield
drilling programs are continuing to provide us with outstanding results, re-affirming Segovia’s position in the
top five highest -grade global underground gold operations. We will be incorporating these results in our
annual mineral reserve and resource updates expected to be announced at the end of March 2022. The
Sandra K and El Silencio results continue to impress both in terms of grades and widths and will
undoubtedly lead to an important resource growth coupled with an extension of the mine life. A new orebody
encountered at Providencia also offers the potential for additional mineral resource growth and extension
of its mine life. In addition, initial high-grade results from the Manzanillo and La Guarida veins are shaping
up our ongoing brownfield drilling campaign which will continue in 2022, focused on the other 24 known
veins we are not currently mining, as an exciting opportunity to add resources and new mines at Segovia."
The ongoing 2021 in-mine and near-mine infill and step-out drilling programs commenced in early January
with four diamond drill rigs operating from purpose-built underground drill stations and comprise a total of
approximately 40,000 meters, or about 67% of th e total drilling program for this year. In-mine and near-
mine infill and step -out drilling is focused on replacing the 2021 mining production and organic growth
through resource and reserve expansion at the Company’s core operating mines. The other 33% of the
planned drilling campaign for 2021, which is focused on achieving new resources from the brownfield
exploration targets encompassing the 24 veins within the Segovia mining title that are not currently in
production, commenced in late 2020 at the Vera Project with one diamond drill rig operating from purpose-
built surface drill stations . 100% of the total in-mine and near -mine drilling campaign for 202 1 and
approximately 50% of the brownfield exploration drilling campaign were completed by the end of October.
GCM Mining currently has eight diamond drill rigs in operation at Segovia . T wo rigs are carrying out
resource definition in the Sandra K mine from one purpose-built surface platform and one underground drill
station within the underground developments of the Sandra K mine ; two rigs are operating from two
purpose-built underground drill stations within the underground developments of the El Silencio mine testing
the 450 and Manto veins from Level 38 and the National Vein from the Lejanias sector; one rig is operating
from surface at Carla to follow -up the high-grade intercepts encountered at depth during the 2020 drilling
campaign; two rigs are operating from surface on the La Guarida-Cristales Trend; and one rig is operating
from surface at Vera testing the northeastern extension of the vein system and a soil gold anomaly.
Key Highlights
IN-MINE and NEAR-MINE DRILLING
Sandra K
In-mine infill drilling from underground station SK5290, installed off Level 4, was completed. This program
has further extended down-plunge, to approximately future levels 7 to 9, an ore-shoot outlined by previous
drilling, which occurs in a block of the Sandra K Vein System delimited by a set of faults striking NE and
steeply dipping to the north related to the Lejanias Fault System . This orebody remains open at depth. A
high gold grade intercept was intersected from drill hole SK-IU-174 (192.95 meters) on the main vein system
with maximum intersection grades of 47.00 g/t Au with 568.0 g/t Ag over 0.50 meters on the Sandra K
Techo Vein. This orebody offers the potential for another phase of resource growth and the high-grade gold
mineralized intercepts encountered so far confirm the higher-grade mineralization at depth.
Additional in-mine infill drilling from underground station SK5480, installed off Level 4, was completed. This
program has continued to delineate and further extend down -plunge, to approximately Level 9, t he ore-
shoot drilled from station SK5290 and the main ore-shoot located in the north fault block of the Sandra K
mine, outlined by mining in the upper levels of the existing operation and by past drilling. Multiple high gold
grades were intersected from 17 drill holes (3,077 meters) on the main vein system with maximu m
intersection grades of 120.77 g/t Au with 682.0 g/t Ag over 0.54 meters on the Sandra K Techo Vein (SK-
IU-179).
Exploration drilling from surface platform SK5050, located in the south ern fault block of the vein system,
was completed. This program, designed on a 150 m x 150 m drill spacing, wa s aimed to extend some
narrow ore-shoots outlined by previous surface drilling up to future levels 8 to 12. Multiple high gold grades
were intersected from 9 drill holes (4,570 meters) on the main vein system with maximum intersection
grades of 138.25 g/t Au with 574.0 g/t Ag over 0.33 meters on the Sandra K Techo Vein (SK-ES-006).
Additional exploration drilling from surface platforms SK5700, SK5875 and SK6020, located in the northern
fault block of the vein system, was carried out with the programs completed on the first two platforms while
it is still ongoing on the third. All these programs were designed on a wide drilling spacing, from 100 m x
100 m to 150 m x 150 m and aimed to extend down-dip the main vein system by 500 meters from Level 6,
which is the deepest level of the mine . Drilling was successful in extending further along strike and down-
dip, to approximately Level 11, the main vein system. Multiple high gold grades were intersected from 1 3
drill holes (5,593 meters) on the main vein system with maximum intersection grades of 16.78 g/t Au with
334.2 g/t Ag over 0.45 meters on the Sandra K Techo Vein (SK-ES-015).
Chumeca
|
In-mine infill drilling from underground station CH 4780, installed on Level 3, aimed to prove the continuity
of the Chumeca Vein close to the intersection with the Sandra K Techo Vein was completed. Drilling was
successful in demonstrating such continuity, but the vein is very narrow, and grades are erratic. Two high
gold grades were intersected from 6 drill holes (820 meters) on the main vein system, which outline two
distinct structures named as the Chumeca Hanging-wall and Footwall Veins interpreted as a split of the
main Chumeca Vein, with maximum intersection grades of 47.32 g/t Au with 71.6 g/t Ag over 0.60 meters
on an unknown structure (CH-IU-035) and 26.89 g/t Au with 17.2 g/t Ag over 0.55 meters on the Chumeca
Footwall Vein (CH-IU-036).
El Silencio
The ongoing directional drilling program on the El Silencio Deep Zone is targeted to extend and better
delineate the southern ore-shoot down-plunge below Level 40, the deepest level of historical mining on the
Manto Vein by Frontino Gold Mines . Drilling on the southern ore -shoot continues to be successful in
confirming the high-grade nature of the 450 Vein and extending the down-plunge continuity of one
(southern) of the two distinct high-grade domains, previously combined, on the Manto Vein by 150 meters.
The 450 Vein, interpreted as a low angle vein or manto, occurs in the hanging -wall of the Nacional Vein,
some 40 meters vertically above. Multiple high gold grades were intersected from 8 kick-off holes (4,509
meters) with maximum intersection grades of 28.20 g/t Au with 24.7 g/t Ag over 0.75 meters on the 450
Vein (ES-MH08-06) and 66.87 g/t Au with 12.9 g/t Ag over 0.74 meters on the Manto Vein (ES-MH08-
10).
The ongoing i n-mine exploration drilling from underground station ES4170, installed off Level 17 of the
Providencia mine, was designed to prove the continuity of the Manto Vein in the southernmost portion of El
Silencio mine. Drilling was successful in demonstrating such continuity coupled with high grades. Multiple
high gold grades were intersected from 5 drill holes (2,123 meters) with maximum intersection grades of
128.78 g/t Au with 43.7 g/t Ag over 0.30 meters (ES-EU-027) and 74.46 g/t Au with 109.8 g/t Ag over
0.95 meters both on the Manto Vein (ES-EU-029).
Providencia
In-mine infill drilling from underground station PV6115, located at the westernmost end and off Level 14,
was completed to test the high -grade intercept encountered in drill hole PV -IU-276, located below the
development of Level 14 to the west that intersected a new orebody with 42 meters horizontal width at an
average grade of 25.0 g/t Au . Multiple medium to high gold grades were intersected from 20 drill holes
(1,868 meters) on the main vein system with maximum intersection grades of 53.66 g/t Au with 26.1 g/t
Ag over 0. 46 meters on the Providencia Vein (PV -IU-286). This new orebody offers the potential for
additional mineral resource growth and extension of the mine life.
Carla
Step-out and infill drilling programs were carried out from surface platforms CA4840 and CA4850 ,
respectively, with the program completed on the first platform while it is still ongoing on the second. The
drilling program from station CA4840, designed on a 50 m x 50 m drilling spacing, was aimed to explore
the southern portion of the La Gran Colombia Vein System east of Levels 3 to 6. Some medium to high
gold grades were intersected from 7 drill holes (1,381 meters) on the main vein system with maximum
intersection grades of 25.46 g/t Au with 24.6 g/t Ag over 0.39 meters on the La Gran Colombia Hanging-
wall Vein (CA -ES-023C). Drilling from station CA4850 was designed to test the La Gran Colombia Vein
System further down-dip from drilling from station CA4840, and to correlate the intersections from this follow
up phase of drilling with some high-grade intercepts encountered in the 2020 drilling phase. To date, it is
still difficult to correlate the high-grade intercepts with t he main structures of the La Gran Colombia Vein
System interpreted so far that comprises: the La Gran Colombia Vein (“LGC”), which is a northerly-trending
master vein with a continuous strike of more than 700 meters and has been drilled to a vertical depth of
about 250 meters, on which a small -scale underground mining operation was developed in the past; a
hanging-wall vein (“LGC-HW1”) that strikes and dips sub-parallel and in close proximity to the LGC, which
merges into the LGC or dies out at depth; and a possible third high-grade, narrow new structure logged as
a breccia (“LGC -FW1”), occurring in the footwall of the LGC, inte rpreted as a splay -off the LGC gently
dipping to the north.
BROWNFIELD DRILLING
Vera
Exploration drilling from surface station VER 4980 confirmed the continuity of the Lluvias Vein to the
southeast of the Vera mine.
Further exploration drilling , designed on a 50 m x 50 m drilling spacing, continued from t wo additional
surface stations VER5220 and VER5560 with the purpose to extend the orebody encountered on the
Lluvias Vein to the northeast. Multiple high silver grades were intersected from 10 drill holes (2,598 meters)
on the Lluvias Vein with maximum intersection grades of 1.83 g/t Au with 432.0 g/t Ag over 0.46 meters
(VER-ES-017).
Marmajito
The brownfield exploration drilling program, which commenced in February 2021 with one diamond drill rig
operating from the underground drill station PV5630, installed off Level 1 7 of the Providencia mine , was
completed in early June with a total of 2,491 meters in 10 drill holes. This program was aimed at testing the
extension of the structure to the west and down-dip. Drilling was successful in extending the structure, but
the vein is narrow . Multiple high gold grades were intersected from 6 drill holes ( 1,441 meters) with
maximum intersection grades of 22.56 g/t Au with 21.8 g/t Ag over 0.54 meters on the Marmajito Vein.
(MAR-EU-008).
Manzanillo
The Manzanillo brownfield target is characterized by a NE trending vein, dipping to the E, set in a complex
structural block delimited by the El Silencio Vein System to the east, the Verticales Nort h System to the
west and the K Fault to the north. This target is historically known for hosting the high -gold grade Victoria
Reina ore shoot.
The mine workings developed on 4 levels appear to indicate that the historic ore shoot shows a NW plunge,
as opposed to the usual NE plunge of all other ore shoots throughout the Segovia-Remedios Mining District.
The initial brownfield exploration drilling program carried out on the Manzanillo Vein commenced in early
June 2021 with one diamond drill rig operating from the underground drill station ES5225, installed on Level
23 of the El Silencio mine, and was completed in late August, totaling 1,115.50 meters in 3 drill holes. This
program aimed at testing the down -dip extension of the Manzanillo Vein was extremely successful in
extending the structure more than 1,000 meters. Multiple medium to high gold grades were intersected with
maximum intersection grades of 41.22 g/t Au with 58.2 g/t Ag over 0.63 meters on the Manzanillo Vein
(MAN-EU-001).
La Guarida-Cristales Trend
The ongoing brownfield exploration drilling program on the high-grade La Guarida-Cristales Trend, located
in the northernmost sector of the title, commenced in August 2021 with one diamond drill rig initially
operating from t he surface drill platform CR6640 and then from the CR6700 drill platform. This drilling
program was designed to explore the southern extension of the La Guarida Vein from the CR6640 platform
and to test the down-plunge extension of the La Guarida mine ore shoot from the CR6700 platform. The La
Guarida-Cristales Trend runs approximately 1.2 km along strike with the La Guarida and Cristales mine s
located at the southern and northern ends of the trend, respectively. The Cristales mine was operated by
Frontino Gold Mines (FGM) , which developed the mine on 6 levels, the longest (Lev el 4) being
approximately 658 meters. Gold mineralization at La Guarida is contained predominantly within a N10-20°
trending sigmoidal quartz vein dipping moderately (20-30°) to the south, ranging from 0.15 m to 1.30 m in
thickness, hosted by granodiorite to quartz-monzonite. The style of mineralization is characterized by two
main stages of mineralization: “Stage 1” is represented by milky quartz, disseminated or nested pyrite,
galena and sphalerite, while “Stage 2” is characterized by grey qu artz and banded pyrite intergrown with
galena and sphalerite . A total of 8 drill holes totaling 1, 404 meters have been completed so far at La
Guarida, with maximum intersection grades of 62.34 g/t Au with 37.3 g/t Ag over 0.40 meters on the La
Guarida Vein (CR-ES-014).
The following tables list the key intercepts from the ongoing 2021 in-mine, near mine and brownfield drilling
programs since the press release issued on June 9, 2021.
In-Mine and Near-Mine Drill Program
SANDRA K MINE
Surface Drilling station SK5700
Hole From (m) To (m) Width (m) Au (g/t) Ag (g/t) Vein
SK-ES-004A 339.62 342.21 2.59 7.05 3.2 SKT
SK-ES-007 117.52 117.98 0.46 11.86 19.9 SNO
SK-ES-007 352.13 353.39 1.26 7.27 20.0 SKT
including 352.47 352.91 0.44 15.14 32.2 SKT
SK-ES-010 182.50 183.10 0.60 11.68 33.6 SNO
SK-ES-015 342.96 344.07 1.11 8.75 186.5 SKT
including 343.62 344.07 0.45 16.78 334.2 SKT
Surface Drilling station SK5050
SK-ES-006 478.80 479.79 0.99 106.92 349.0 SKT
including 478.80 479.13 0.33 138.25 574.0 SKT
SK-ES-009 456.28 457.85 1.57 3.28 12.4 SKT
including 456.28 456.64 0.36 9.59 7.2 SKT
SK-ES-011 460.25 461.99 1.74 6.65 10.5 SKT
including 461.42 461.99 0.57 18.66 19.0 SKT
SK-ES-013 496.31 497.62 1.31 12.77 11.4 SKT
including 496.31 496.87 0.56 28.0 26.5 SKT
SK-ES-020 511.38 516.61 5.23 0.92 3.0 SKT
including 516.03 516.61 0.58 7.24 8.6 SKT
SK-ES-021 515.09 517.16 2.07 8.43 8.5 SKT
including 516.05 516.55 0.50 30.23 19.7 SKT
Surface Drilling station SK6020
SK-ES-022 387.93 391.24 3.31 1.61 9.3 SKT-FW
including 390.77 391.24 0.47 8.32 16.4 SKT-FW
U-G Drilling station SK5290
SK-IU-174* 171.30 173.55 2.25 16.58 138.8 SKT
including 171.30 171.80 0.50 47.00 568.0 SKT
U-G Drilling station SK5480
SK-IU-179* 132.87 135.07 2.20 35.65 185.2 SKT
including 134.53 135.07 0.54 120.77 682.0 SKT
SK-IU-180* 136.31 138.21 1.90 15.48 64.9 SKT
including 136.31 137.15 0.84 31.90 116.4 SKT
SK-IU-182* 115.78 116.56 0.78 11.93 40.6 6640
SK-IU-182* 122.63 128.00 5.37 1.75 9.9 SKT
including 122.63 123.00 0.37 17.35 99.2 SKT
SK-IU-183* 120.42 121.00 0.58 10.67 36.7 6640
SK-IU-183* 131.80 133.04 1.24 6.71 30.7 SKT
including 131.80 132.15 0.35 13.48 58.2 SKT
SK-IU-184* 181.53 182.45 0.92 14.44 24.4 SKT-FW
SK-IU-184A* 185.34 186.73 1.39 47.49 105.7 SKT-FW
including 185.66 186.24 0.58 106.55 235.2 SKT-FW
SK-IU-185* 202.90 203.40 0.50 52.02 36.6 SKT-FW
SK-IU-187* 117.75 118.96 1.21 12.90 52.3 SKT
SK-IU-188* 134.85 138.16 3.31 3.15 19.4 SKT
including 134.85 135.18 0.33 13.03 42.5 SKT
SK-IU-189* 158.75 160.42 1.67 7.48 21.7 SKT
including 160.05 160.42 0.37 12.11 35.5 SKT
SK-IU-193* 224.50 225.79 1.29 32.30 0.4 SKT-FW
including 225.35 225.79 0.44 91.22 0.4 SKT-FW
SK-IU-194* 127.22 128.23 1.01 9.57 1.8 6640
SK-IU-194* 154.14 156.24 2.10 16.80 9.0 SKT
SANDRA K MINE – CHUMECA VEIN
U-G Drilling station CH4780
CH-IU-035* 77.55 78.15 0.60 42.32 77.6 SNO
CH-IU-036* 125.70 126.25 0.55 26.89 17.2 CHU-FW
El SILENCIO MINE
U-G Drilling station ES5980
ES-EU-014* 42.30 42.79 0.49 34.85 26.7 TEN
ES-EU-016* 73.56 73.86 0.30 7.16 4.1 SNO
ES-EU-016* 76.27 76.60 0.33 6.03 2.7 SNO
ES-EU-016* 168.92 169.24 0.32 6.39 11.9 VEM
ES-EU-021* 119.20 122.65 3.45 2.56 2.8 VEM
including 119.20 119.70 0.50 14.10 8.7 VEM
ES-EU-022* 108.56 109.45 0.89 9.25 62.5 VEM
U-G Drilling station ES4170
ES-EU-027* 340.52 346.66 6.14 8.09 3.8 VEM
including 346.36 346.66 0.30 128.78 43.7 VEM
ES-EU-028* 308.90 309.42 0.52 19.01 12.9 VEM
ES-EU-029* 350.35 352.35 2.00 37.39 52.4 VEM
including 350.35 351.30 0.95 74.46 109.8 VEM
U-G Drilling station ES5240
ES-IU-130* 99.85 100.40 0.55 7.72 1.3 450
ES-IU-130* 105.70 106.25 0.55 9.64 3.8 450-FW
ES-IU-131* 15.86 16.30 0.44 23.24 42.8 NAL
U-G Drilling station ES5200
ES-IU-137* 31.34 32.03 0.69 9.29 1.6 SNO
ES-IU-139* 46.66 47.30 0.64 8.99 5.4 VPP
El SILENCIO DEEP - DIRECTIONAL DRILLING
U-G Drilling station ES5690
ES-MH08-04** 919.08 919.74 0.66 7.01 10.3 450
ES-MH08-05** 1110.58 1111.26 0.68 6.67 12.0 VEM-FW
ES-MH08-06** 911.55 914.03 2.48 9.23 8.3 450
including 911.55 912.30 0.75 28.20 24.7 450
ES-MH08-07** 1075.35 1075.97 0.62 6.37 5.3 VEM
ES-MH08-08** 1044.45 1046.06 1.61 7.40 19.4 VEM
including 1044.45 1045.00 0.55 14.67 3.1 VEM
ES-MH08-09** 719.91 720.34 0.43 6.13 6.9 SNO
ES-MH08-09** 853.16 855.75 2.59 10.71 4.3 450
including 853.93 854.79 0.86 26.55 7.7 450
ES-MH08-10** 1033.71 1036.94 3.23 15.99 5.9 VEM
including 1035.48 1036.22 0.74 66.87 12.9 VEM
ES-MH08-11** 875.40 876.30 0.90 14.55 0.7 450
PROVIDENCIA MINE
Surface Drilling station PV6800
PV-ES-011 189.08 189.59 0.51 8.41 35.2 SNO
PV-ES-011 321.20 321.54 0.34 30.82 4.2 SNO
PV-ES-016 234.37 235.37 1.00 5.62 0.3 SNO
including 234.37 234.88 0.51 11.00 0.5 SNO
U-G Drilling station PV5630
PV-EU-032* 83.88 84.27 0.39 16.55 9.6 SNO
U-G Drilling station PV6115
PV-IU-286* 65.90 66.36 0.46 53.66 26.1 PRO-FW
PV-IU-288A* 87.41 96.65 9.24 0.85 7.0 PRO
including 95.85 96.65 0.80 6.09 5.0 PRO
CARLA MINE
Surface Drilling station CA4840
CA-ES-023C 160.35 163.42 3.07 4.48 3.9 LGC-HW
including 161.94 162.33 0.39 25.46 24.6 LGC-HW
CA-ES-024 209.86 210.17 0.31 12.60 13.8 SNO
CA-ES-027 184.54 186.12 1.58 3.89 9.6 LGC
including 185.34 186.12 0.78 6.50 17.8 LGC
Brownfield Drill Program
VERA VEIN
Hole From To Width Au (ppm) Ag (ppm) AuEq (ppm) Vein
Surface Drilling station VER5220
VER-ES-016 258.92 259.59 0.67 1.31 334.0 5.76 LLV
VER-ES-017 252.54 252.96 0.46 1.83 432.3 7.59 LLV
VER-ES-018 252.65 252.95 0.30 4.96 91.50 6.18 LLV
Surface Drilling station VER5560
VER-ES-022 78.75 79.28 0.53 1.83 273.7 5.48 LLV
VER-ES-025 93.70 94.30 0.60 1.25 320.0 5.52 LLV
MARMAJITO VEIN
U-G Drilling station PV5630
Hole From (m) To (m) Width (m) Au (g/t) Ag (g/t) Vein
MAR-EU-007* 167.41 168.34 0.93 15.25 5.9 MAR
including 167.80 168.34 0.54 17.39 4.4 MAR
MAR-EU-008* 229.00 229.45 0.45 6.35 5.7 MAR
MAR-EU-008* 252.40 252.94 0.54 22.56 21.8 MAR-FW
MANZANILLO VEIN
U-G Drilling station ES5225
MAN-EU-001* 227.24 227.87 0.63 41.22 58.2 MAN
MAN-EU-001* 352.25 353.00 0.75 9.17 11.0 SON
MAN-EU-002* 276.35 276.84 0.49 9.14 6.8 MAN
LA GUARIDA VEIN
Surface Drilling station CR6640
CR-ES-013 72.62 73.46 0.84 3.69 19.2 LG
including 73.16 73.46 0.30 9.82 52.2 LG
Surface Drilling station CR6700
CR-ES-014 202.06 203.00 0.94 28.29 16.0 LG
including 202.06 202.46 0.40 62.34 37.3 LG
* Denotes underground drill holes. The underground infill holes were drilled at 54 to -86 degrees from the horizontal. Sample interval
grades over 6.0 g/t Au are reported. Grades are for quartz vein intersections and are length -weighted composites. The wid th is the
sample length and is not necessarily the true width of the vein. All gold and silver grades are uncut and are not diluted to a minimum
mining width. Au-equivalent grade (AuEq) calculated using a Au:Ag price ratio of 75:1 with 100% recovery.
** Denotes directional drilling mother and kick-off holes. The directional drilling kick -off holes were drilled at -35 to -62 degrees from
the horizontal. Sample interval grades over 6.0 g/t Au are reported.
Vein name abbreviations: SKT: Sandra K Techo Vein. SKT-FW: Sandra K Techo Footwall Vein. 6640: 6640 Vein. CHU-FW: Chumeca
Footwall Vein. VEM: Manto Vein. VEM-FW: Manto Footwall Vein. 450: 450 Vein. 450-FW: 450 Footwall Vein . NAL: Nacional Vein.
TEN: Tensional Vein. VPP: Principal Vein. PRO-FW: Providencia Footwall Vein. LGC: La Gran Colombia Vein. LGC -FW: La Gran
Colombia Footwall Vein. LLV: Lluvia Vein. MAR: Marmajito Vein. MAR -FW: Marmajito Footwall Vein. MAN: Manzanillo Vein, MAN-
FW, Manzanillo Footwall Vein. LG: La Guarida Vein. SNO: unnamed vein.
Results from in-mine exploration and infill drilling are reported for 87 holes (13,742 m) including: 18 holes
(3,270 m) at Sandra K (SK -IU-174, SK-IU-179 to SK -IU-194) of which one was lost ; 7 holes (946 m) at
Chumeca (CH-IU-033 to CH-IU-038) of which one was lost; 33 holes (6,034 m) at El Silencio (ES-IU-126
to ES-IU-140 and ES-EU-014 to ES -EU-030) of which two were lost; and 29 holes (3,492 m) at Providencia
(PV-IU-286 to PV-IU-303 and PV-EU-025 to PV-EU-033) of which one was lost. There are no results above
cut-off grade for 4 holes at Sandra K , 5 holes at Chumeca, 21 holes at El Silencio and 26 holes at
Providencia, so these holes are not listed in the table.
Results from near-mine surface exploration drilling are reported for 43 holes (16,972 m) including: 23 holes
(10,588 m) at Sandra K (SK-ES-004A, SK-ES-006 to SK-ES-023) of which one was lost; 6 holes (2,876 m)
at Providencia (PV-ES-011 to PV-ES-016); and 14 holes (3,508 m) at Carla (CA-ES-022 to CA-ES-032) of
which three were lost . There are no results above cut -off grade for 12 holes at Sandra K, 5 holes at
Providencia and 11 holes at Carla, so these holes are not listed in the table.
Results from brownfield exploration drilling are reported for 28 holes (6,946 m) including: 11 holes (2,985
m) at Vera (VER-ES-015 to VER-ES-025); 6 holes (1,441 m) at Marmajito (MAR-EU-007 to MAR-EU-012);
3 holes (1,116 m) at Manzanillo (MAN-EU-001 to MAN-EU-003); and 8 holes (1,404 m) at La Guarida (CR-
ES-009 to CR-ES-015) of which one was lost. There are no results above cut-off grade for 6 holes at Vera,
4 holes at Marmajito, 1 hole at Manzanillo and 6 holes at La Guarida, so these are not listed in the table.
Results from directional drilling from one purpose-built station at El Silencio are reported from 8 kick-off
holes (ES-MH08-04 to ES-MH08-11), totaling 4,509 m, all drilled on the southern ore-shoot.