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Osisko Development Announces Filing of Technical Report for the Newly-Acquired Tintic Project and Producing Underground Trixie Mine

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MONTREAL, June 10, 2022 – Osisko Development Corp. ("Osisko Development" or the "Company") (ODV TSX-V & NYSE - https://www.commodity-tv.com/ondemand/companies/profil/osisko-development-corp/ ) is pleased to announce the filing of a technical report, prepared in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101"), on its recently acquired Tintic Project ("Tintic"), including the producing underground Trixie Mine ("Trixie") located in the state of Utah, USA, pursuant to its 100% acquisition of Tintic Consolidated Metals Company ("TCM") on May 27, 2022.

Introduction

The Tintic Project consists of various past producing precious and base metal mines located in the East Tintic Mining District, Utah, 95 km southwest of Salt Lake City. The Tintic Project is comprised of approximately 17,000 acres (6,880 ha), including 14,200 acres (5,746 ha) of patented mining claims (Figure 1), and was acquired by Osisko Development on May 27, 2022 (see news release on the Company's website). Trixie, located within the Tintic Project, is an operating gold mine and produces approximately 45 tons per day ("tpd").

The technical report on the Tintic Project, entitled "Technical Report on the Tintic Project, East Tintic Mining District, Utah County, Utah, USA", dated June 10, 2022 (effective date of June 7, 2022), prepared by Tom Henricksen (SME # 411 5974) (the "Tintic Technical Report") provides a summary of the geology and mineralization (Figure 2), description of land and ownership, property history, current development and production at Trixie and recommendations on future work programs. There is currently no mineral resource estimate on the Tintic Project that complies with NI 43-101 and, as such, any decisions in respect of the Tintic Project have been informed by data collected and current best practices adopted by management. The current production at Trixie is directed by underground exploration, face sampling, and drilling.

Highlights

  • Based on 1,996 underground samples taken in the T2 and T4 mineralized zones along a strike length of 630 ft, the uncapped and unweighted grade is 49 oz/t Au ("troy oz per ton") (188.23 g/t Au) ("grams per tonne") and 6.64 oz/t Ag (227.66 g/t Ag). Mineralization is open in all directions (Figure 3).
  • The discovery of the T2 and T4 structures in late 2020 by TCM showed Au grades associated with high sulphidation alteration hosted within quartzites that are capped by impermeable shales and volcanics.
  • Trixie production is approximately 45 tpd
  • A total of 27,400 tons of mineralized material was mined at Trixie from September 2020 through to the end of December 2021 generating 15,752 oz of Au and 17,605 oz of silver (Ag) from the 625 level predominantly from the T2.
  • Total revenue for TCM from January to end of December 2021 was approximately $26.1 million USD.
  • Access to the underground workings is available via an existing operating shaft. Underground exploration is being conducted on the upper level at the same time as extraction of mineralized material for processing.

The Company intends to invest at Trixie over the following months to advance exploration initiatives, including the construction of an underground exploration ramp and continuing with diamond drilling and sampling, to inform the preparation of a technical report for an initial mineral resource estimate in accordance with NI 43-101, which is anticipated for release by the end of Q4, 2022.

 

Sean Roosen, CEO of Osisko Development commented, "The Tintic acquisition is an exciting acquisition for our shareholders as it provides the Company with immediate production and a clear opportunity for exploration. We believe that we have the potential to define the resource estimate and provide a basis for future production at a low capital cost. We are excited about the quality of exploration targets at Trixie, and the areas beyond Trixie within the large wholly owned district."

Figure 1: Project Location Map

Figure 2: Mineralization Styles at Tintic

 

Figure 3: Long Section of the Trixie Mine

 

Qualified Persons / Technical Information

Tom Henricksen, (SME # 411 5974), a "qualified person" within the meaning of NI 43-101 and "independent" of Osisko Development for purposes of Section 1.5 of NI 43-101, has reviewed and approved the scientific and technical information in this news release.

For further information on Trixie, please see the Tintic Technical Report, a copy of which is available on SEDAR (www.sedar.com) and on the U.S. Securities and Exchange Commission's (“SEC”) EDGAR website (www.sec.gov), in each case under Osisko Development's issuer profile, and on the Company's corporate website.

The Company cautions that the decision to commence production at Trixie in the form of small scale underground mining and batch vat leaching without the benefit of a feasibility study, or reported mineral resources or mineral reserves, demonstrating economic and technical viability, and, as a result there may be increased uncertainty of achieving any particular level of recovery of material or the cost of such recovery. The Company cautions that historically, such projects have a much higher risk of economic and technical failure. There is no guarantee that production will continue as anticipated or at all or that anticipated production costs will be achieved. The failure to continue production may have a material adverse impact on the Company's ability to generate revenue and cash flow to fund operations. Failure to achieve the anticipated production costs may have a material adverse impact on the Company's cash flow and potential profitability. The Company cautions that historically, such projects have a much higher economic or technical risks. In continuing current operations at Trixie after closing, the Company will not be basing its decision to continue such operations on a feasibility study, or reported mineral resources or mineral reserves demonstrating economic and technical viability. The Company cautions that mining at Trixie could be suspended at any time.

The Company is subject to the reporting requirements of the applicable Canadian securities laws, and as a result reports information regarding mineral properties, mineralization and estimates of mineral reserves and mineral resources, including the information in the Tintic Technical Report and this news release, in accordance with Canadian reporting requirements, which are governed by NI 43-101. As such, such information concerning mineral properties, mineralization and estimates of mineral reserves and mineral resources, including the information in the Tintic Technical Report and this news release, is not comparable to similar information made public by U.S. companies subject to the reporting and disclosure requirements of the SEC.

About Osisko Development Corp.

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