Loma Alta mining area63.76764 ha · underground driftsEl EncantoUnderground mineYarumoProcessing plantEl ChilenoPlant + facilitiesProduction land5 ha + 1,998 m²Four production assets held under notarized long-term lease with exclusive use rights

Mine assets: one underground mine, two processing plants and supporting land.

Mine Profile

This page sets out the operator’s registry data, business scope, mine assets and licences, and production and shipment parameters. Data comes from the project’s source materials (title, lease contracts, assay reports, shipping documents, company registration). Items not covered are marked pending verification and are not extrapolated.

901
049019-1
Tax ID · NIT
63.77
hectares
licensed mining area
19,140
Mining licence no.
issued by INGEOMINAS
20.47
g/t
gold concentrate grade
~100
t / month
steady-state output
1
line in operation
running continuously

Operator registry data

ItemDetail
CompanyCREC MATERIAL CO S.A.S
Entity typeS.A.S (simplified joint-stock company, the mainstream Colombian commercial form)
Tax ID · NIT901049019-1
Registered seatBuenos Aires, Cauca, Colombia
Legal representativeJAILER FERNANDO MURILLO
StatusActive; no dissolution, suspension, administrative penalty or share freeze; annual chamber of commerce review completed on schedule
TermNo fixed end date (perpetual)
Business scopeUnderground mining of gold, silver and copper, drift development, mine engineering; crushing, grinding, flotation, gold concentrate processing, compliant tailings disposal; domestic trading and cross-border import/export of concentrate and precious-metal ore; procurement and storage of equipment, reagents and safety supplies; leasing of mine land, plants and tunnels
TaxRUT unified tax registration issued by DIAN, covering precious-metal import/export and mining; able to invoice, claim export rebates, and pay mining royalties (regalías) and environmental levies
Export qualificationHolds precious-metal export qualification; may file concentrate shipments with customs directly

Title and operation separated

The mine follows the standard local model: the cooperative holds the mining title and a specialised company operates under lease. Responsibilities are defined by the notarized lease.

RolePartyResponsibility
Title holderLocal miners cooperative COOMULTIMINEROSHolds the mining title, handles licence renewal, community liaison and local filings; no day-to-day operation, no operating cost
OperatorCREC MATERIAL CO S.A.SExclusive use rights under notarized long-term lease; mining, processing, equipment maintenance, staffing and export trade; operating cost accounted separately and result of concentrate sales retained

Location parameters

ParameterValue
LocationLoma Alta, Buenos Aires, Cauca, Colombia
Licensed area63.76764 ha (637,676 m²), single block, 13 boundary points with GPS-UTM coordinates; no mining beyond boundaries
Mining methodUnderground drifts; classified as a small mine
Licensed mineralGold (originally applied for gold with silver by-product; gold confirmed after environmental assessment)
Land use2022 municipal certificate: the plot is zoned for mining, not for residential or agricultural use

Production and shipment

ParameterValueBasis
Line in operation1Complete processing line, running continuously
Steady-state output~100 t / monthGold concentrate, single-line monthly capacity at steady state
Actual shipments, Aug 2026104 t4 containers × ~26 t, that month’s shipment record
Concentrate grade20.47 g/tThird-party assay (Shandong Zhaoyuan precious metals laboratory), with associated silver and copper
RouteBuenaventura → QingdaoCOSCO carrier; customs declaration HS 2616, bill of lading, weight note and container numbers on file

Settlement process

STEP 1

Processing done

Concentrate loaded

STEP 2

Buyer advance

Part payment before loading

STEP 3

Shipment arrives

Delivered to domestic port

STEP 4

Third-party check

Weight and gold grade verified

STEP 5

Balance settled

Single batch closed

A medium-to-long term gold concentrate purchase framework agreement is in place with a domestic precious metals trading company. Main cost items: wages, mine lease, explosives and reagents, power and fuel, ocean freight, import/export taxes and fees, and administration and maintenance.

Compliance documents

DocumentContentIssuing / approving body
Mining licence 19,140Licensed area 63.76764 ha, gold mining permit, 10-year termINGEOMINAS (Colombian geological and mining authority)
Environmental management plan (PMA)Resolution 0545, covering mining, processing, tailings, wastewater, dust and closureCRC (regional environmental authority of Cauca)
Municipal land-use certificatePlot zoned for mining, not residential or agriculturalBuenos Aires municipal planning office (2022)
Notarized lease agreementExclusive use rights to the mine, two processing plants and production landLocal notary
Owner’s sublease authorisationWritten consent to sublet, recognising all lease agreementsOriginal owner (notarized)
Concentrate assay report20.47 g/t gold, with associated silver and copperShandong Zhaoyuan precious metals laboratory
Shipping and customs documentsBill of lading, customs declaration (HS 2616), weight note, container voucherCOSCO / Colombian customs
Company registration and tax filesCertificate of existence and legal representative, RUT tax registrationBuenos Aires chamber of commerce / DIAN
Environmental approval: absent material expansion, the PMA approval remains valid with no re-filing; new lines require a supplementary environmental filing. INGEOMINAS and CRC have completed site inspections.

Lease terms

Leased assetTerm
El Encanto underground mineSigned 2014, 20-year term (to 2034)
Yarumo plant, El Chileno plant, mine, 5 ha land and 1,998 m² plot (package)Master lease agreement, renewed to 2037

Resource estimate

Under industry standards, a resource estimate must use in-situ grade and be confirmed by a competent report. The table below is a parametric estimate provided to indicate scale and basis.

ParameterValueNote
Area63.7676 haConsistent with the licensed area
Average mining depth15 mAssumption in the materials; to be confirmed by exploration
Ore bulk density2.6 t/m³Industry-standard assumption
Derived ore tonnage~24.87 MtArea × depth × density
In-situ gradeContained metalMoz troyBasis
5 g/t124.35 t399.8Int’l underground average · low
6 g/t149.22 t479.7Int’l underground average · mid
7 g/t174.09 t559.7Int’l underground average · high
Note: the above is a parametric estimate and does not constitute a resource or reserve statement under NI 43-101 / JORC / S-K 1300.
In-situ metal value is the product of contained metal and the spot gold price, before mining, processing, transport, administration costs and taxes, and before capital expenditure, mining dilution and loss, smelting deductions and the time value of money; it is not equivalent to recoverable economic value or a mineral asset valuation. 20.47 g/t is an assay result for gold concentrate (processed sand), i.e. a product grade, not in-situ grade.