Northern Dynasty: Pebble Partnership Consents to EPA Request for Additional 20-day Abeyance to July 3, 2025

VANCOUVER, BC / ACCESS Newswire / June 12, 2025 / Northern Dynasty Minerals Ltd. (TSX:NDM)(NYSE American:NAK) ("Northern Dynasty" or the "Company") and its 100%-owned U.S.-based subsidiary Pebble Limited Partnership ("Pebble Partnership" or "PLP") have informed the government that they do not object to a motion from the Environmental Protection Agency ("EPA") and U.S. Army Corps of Engineers ("USACE") (collectively, the "defendants") to hold the litigation in abeyance for a further 20 days. This is in addition to the prior 90- and 30-day abeyances previously requested by the defendants to give the leadership of the new administration time to familiarize themselves with the issues presented in this case and to decide how they wish to proceed.

"We have been patient with the post-election process with the understanding that it takes time to get the right staff in place and working," said Ron Thiessen, Northern Dynasty President and CEO. "However, accelerating the production of critical metals like copper is important for Alaska and the U.S. and the roadblocks to permitting need to be removed. We can proceed with our court filings in the legal action against the preemptive and illegal Obama/Biden era EPA veto, if necessary, but it would be far more timely, efficient, and in-line with the current U.S. administration's objectives if this extraordinary restriction, implemented by the previous administration, is simply withdrawn."

About Northern Dynasty Minerals Ltd.

Northern Dynasty is a mineral exploration and development company based in Vancouver, Canada. Northern Dynasty's principal asset, owned through its wholly owned Alaska-based U.S. subsidiary, Pebble Limited Partnership, is a 100% interest in a contiguous block of 1,840 mineral claims in Southwest Alaska, including the Pebble deposit, located 200 miles from Anchorage and 125 miles from Bristol Bay. The Pebble Partnership is the proponent of the Pebble Project.

For further details on Northern Dynasty and the Pebble Project, please visit the Company's website at www.northerndynastyminerals.com or contact Investor services at [phone] or within North America at 1-800-667-2114. Public filings, which include forward looking information cautionary language and risk factor disclosure regarding the Company and the Pebble Project can be found in Canada at www.sedarplus.ca and in the United States at www.sec.gov.