Highlights included 24.94m grading 1.85% copper, 2.96% zinc, 0.57% lead, 0.28 grams per tonne gold and 27.09g/t silver for a copper equivalent grade of 3.55%.

"Not only is Arctic high grade, but it also has wide zones of mineralisation that are relatively close to surface. Of note is drill hole AR21-0175 which appears to extend high-grade mineralisation beyond the current pit at Arctic," said Trilogy Metals president and CEO Tony Giardini.

The 2021 Arctic field programme included 4,131m of diamond drilling in 18 holes designed to convert a portion of the resources from indicated to measured and provide material for metallurgical testing and geotechnical information. Results for 16 holes are pending.

Trilogy Metals is trading at C$2.25, valuing the company at $325 million.