Northern Dynasty Advances Legal Challenge To Pebble Mine Veto As Judge Sets Summary Judgment Schedule In Alaska Court

Northern Dynasty Minerals Ltd. (TSX:NDM)(NYSE:NAK) ("Northern Dynasty" or the "Company") and its 100%-owned U.S.-based subsidiary Pebble Limited Partnership ("Pebble Partnership") provide an update on veto removal negotiations with the U.S. Government and on the recent order by Judge Gleason in the Alaska Federal District granting our motion to set a summary judgement briefing schedule for good cause shown.

Judge Gleason has now set the summary briefing schedule after receiving submissions by both the plaintiffs and the defendants. Under the order, the plaintiffs (the State of Alaska, Pebble Partnership and Iliamna Natives Ltd, et al.) will file their opening briefs by October 3, 2025. The Department of Justice ("DOJ") will then file their response brief by January 2, 2026 and the plaintiffs will file their response to the DOJ's briefs by February 27, 2026. The case against the U.S. Army Corps of Engineers remains stayed.