Additional 2018 Drill Results At The Curipamba Project

 

TORONTO - Adventus Zinc Corporation and Salazar Resources Limited reported additional drill holes from the 2018 infill drilling program on the El Domo volcanogenic massive sulphide (VMS) deposit; which is part of the approximately 22,000-hectare Curipamba project located near Las Naves, Ecuador.

The infill drilling program commenced in early March 2018 with the objective of upgrading the confidence level of the higher-grade portion of the open-pit constrained Mineral Resource by decreasing drill spacing; which will also generate material for a planned metallurgical program in the second half of 2018. To date, drilling within higher-grade portion of the open-pit constrained Mineral Resource has successfully completed 42 out of 52 drill holes, with two drill holes in progress, for a total of 7,310 meters from a planned 7,500 meter work program.  This phase of infill drilling is expected to be completed before the end of third quarter 2018.

Drill hole CURI-278 intersected massive sulphide mineralization from 55.98 to 60.56 meters for an approximate true thickness of 3.89 meters, grading 5.29% copper, 19.60 g/t gold, 31.75% zinc, 364.2 g/t silver, and 2.88% lead.

Metal equivalency based on US$3.25/lb Cu, US$1,500/oz Au, US$1.30/lb Zn, US$23/oz Ag and US$1.10/lb Pb; noting that no adjustments were made in the metal equivalency calculation for metal recovery, as this is still an early stage project

Drill hole CURI-279 intersected massive sulphide mineralization from 59.52 to 62.20 meters for an approximate true thickness of 2.55 meters, grading 6.99% copper, 2.98 g/t gold, 4.43% zinc, 81.6 g/t silver, and 0.35% lead. A subset interval of massive sulphide mineralization possesses significantly higher-grade zinc from 59.52 to 61.19 meters, grading 7.33% copper, 4.50g/t gold, 6.78% zinc, 107.2 g/t silver, and 0.53% lead. It should be noted that the bottom of the massive sulphide intercept is faulted from 61.19 to 62.20 meters.

The Curipamba project work program is being managed and reviewed by Vice President Exploration, Jason Dunning, M.Sc., P.Geo., a Qualified Person within the meaning of NI 43-101. Salazar staff collect and process samples that are securely sealed and shipped to Bureau Veritas ("BV") in Quito for sample preparation that includes crushing and milling to prepare pulps that are then split for shipment to their facility in Lima, Peru for analysis. All assay data have undergone internal validation of QAQC; noting there is an established sampling control program with blind insertion of assay blanks, certified industry standards and sample duplicates for the Curipamba project. A QAQC program is also in place at BV and includes insertion of blanks, standards and duplicate reanalysis of selected samples.  BV's quality system complies with the requirements for the International Standards ISO 9001:2000 and ISO 17025: 1999. At BV, gold is analyzed by classical fire assay techniques with an ICP-AES finish, and both silver and base metals are analyzed by a 44-element aqua regia ICP-AES technique. Over-limit protocols are in place for gold, silver, copper, lead, and zinc.

Infill drilling continues to yield intercepts of high-grade, copper- and gold-rich semi-massive to massive sulphide mineralization within the open-pit constrained Mineral Resource update for the El Domo VMS deposit completed by Roscoe Postle Associates Inc. ("RPA"). The Indicated Mineral Resource totals 8.8 million tonnes grading 1.62% copper, 2.34 g/t gold, 2.42% zinc, 48.0 g/t silver, and 0.27% lead. The Inferred Mineral Resource totals 2.6 million tonnes grading 1.29% copper, 1.09 g/t gold, 1.51% zinc, 29.0 g/t silver, and 0.14% lead (see January 31, 2018 news release). The National Instrument ("NI") 43-101 Technical Report was authored by Independent Qualified Person Dr. Lars Weiershauser, P.Geo., of RPA (based in Toronto, Ontario, Canada) who is a Qualified Person as defined by NI 43-101.