Third Best Drill Hole Intersection At The Arctic Project

VANCOUVER - Trilogy Metals Inc. reported on the second set of drilling results from the 2021 summer field season at the Arctic Project, part of the Upper Kobuk Mineral Projects (UKMP) located in northwestern Alaska managed by Ambler Metals LLC, the joint venture operating company equally owned by Trilogy and South32 Limited. The 2021 Arctic drill program included 4,131 meters of diamond drilling, comprising 18 holes, that were designed to convert a portion of the resources from the Indicated category to the Measured category, and provide material for metallurgical testing and geotechnical information. The results are from the first two infill holes that were drilled early in the 2021 field season. Previously the Company reported on the assay results for holes AR21-0173 and AR21-0175, two geotechnical drill holes that intersected high-grade mineralization beyond the currently designed pit at Arctic.

The results of the remaining 14 holes are expected to come in over the next couple of months. Highlights from the first two infill drill holes of the 2021 drill program, based on a cut-off grade of 0.5% copper equivalent, significant zones of high-grade copper, zinc, lead, gold, and silver mineralization were intersected, including: AR21-0176 intersected three mineralized intervals, including 19.91 meters of 6.75% copper, 7.59% zinc, 1.68% lead, 1.26 g/t gold and 97.13 g/t silver for a copper equivalent grade of 11.76% and 6.76 meters of 1.55% copper, 6.61% zinc, 1.58% lead, 0.12 g/t gold and 20.68 g/t silver for a copper equivalent grade of 4.77% and, AR21-0174 intersected one mineralized interval of 10.12 meters of 3.21% copper, 6.14% zinc, 1.46% lead, 0.69 g/t gold and 49.74 g/t silver for a copper equivalent grade of 6.84%.

All reported intervals are thought to be close to the true width and therefore represent the actual thickness of mineralization. Drill hole AR21-0176, which contained 19.91 meters of 11.76% copper equivalent (a grade thickness of 234.09 %meters), represents the third highest ever grade-thickness intersect out of 178 holes drilled at the Arctic Project to date.

A comparison of the top five holes drilled at Arctic.

Tony Giardini, President and CEO, said, ""The 2021 drilling campaign confirms that the Arctic Project has some of the highest grades of polymetallic mineralization in the world with copper-equivalent grades frequently in the double digits. The copper-equivalent grades at Arctic rival some of the high-grade copper projects in Africa, while being in one of the most stable mining jurisdictions in the world."