T2 Mineralization Expands 55 Meters Down Dip At Trixie-Tintic Project

MONTREAL - Osisko Development Corp. reported on drilling and underground chip sampling results from new development areas as part of its ongoing exploration program at its 100%-owned Trixie test mine, within the wider Tintic Project, located in East Tintic Mining District in central Utah.

Chris Lodder, President, said, "Tintic continues to deliver high grade underground sampling and initial diamond drill results, as our exploration efforts expand the area of mineralization in and around Trixie, which remains open at depth and along strike. As we continue to drive development to reach deeper levels of Trixie beyond the main 625 level towards the end of 2023, we are excited to test exploration potential of target areas located adjacent to historic mine workings that have previously not been tested. Trixie is just one of four quality precious metal targets in our land package, and our greater understanding of the controls on the various styles of precious and base metal mineralization opens up years of potential exploration growth and excitement for our shareholders."

Assay highlights include underground chip samples from 114 new development faces at Trixie. A length-weighted composite for each face Site ID and individual higher-grade samples are also identified within the composites. Samples are collected in feet ("ft.") and assays are reported in grams per tonne ("g/t") and troy ounce per short ton ("oz/t") gold ("Au") and silver ("Ag"). Conversions to metric and imperial measurements are rounded to two decimal places.

In 2022, the Company completed 28 surface reverse circulation ("RC") drill holes near Trixie totaling approximately 8,442 m (27,700 ft.) and 62 underground diamond drill holes ("DD") in the 625 level at Trixie totaling approximately 3,232 m (10,060 ft.). To date, assays have been received for 8 RC drill holes and 14 DD holes. The Company currently has two underground diamond drill rigs in operation at Trixie and has greatly improved on core recovery and drill production challenges faced early in the 2022 program.