Decade Resources Reports Expanded Exploration at the North Mitchell Property, Golden Triangle, BC

Stewart, British Columbia--(Newsfile Corp. - September 18, 2025) - Decade Resources Ltd. (TSXV: DEC) ("Decade" or the "Company") reports further exploration due to the positive results from a recent reconnaissance program on the North Mitchell Property, located approximately 7 km north of Newmont's Brucejack Mine and east of Seabridge Gold's Iron Cap deposit in the prolific Golden Triangle of British Columbia.

The combined number of ounces of reported gold within 8 deposits situated in 3 directions around the North Mitchell Property (measured, indicated + inferred) is estimated at 201.67 million oz+/- as follows:

1. KSM's Iron Cap deposit is located within 2 km, with a combined resource of 36.1 million oz Au
2. KSM's Snowfield deposit is located within 2.9 km, with a combined resource 34.9 million oz Au
3. KSM's Kerr, Sulphurets, Mitchell deposits, total a combined 88.3 million oz Au, located 8.8 km, 5.5 km & 3.6 km from North Mitchel respectively
4. Tudor Gold's Treaty Creek deposit is within 5 km, with a combined 27.87 million oz Au
5. Newmont's Brucejack & Valley of Kings deposits are within 6.4 km, with a combined 14.5 million+ oz Au (one of the highest grade gold mines in the world

These estimates do not include the hundreds of millions of reported ounces of silver and billions of pounds of copper included within these deposits.

Disclaimer: The above information has been obtained from available public sources and is being used for reference purposes only. There is no guarantee that the North Mitchell property hosts any mineralization similar to the above deposits.

View down the Mitchell Creek Valley from the property showing 3 deposits: Snowfield Deposit upper left, Mitchell Deposit adjacent to the Snowfield and Iron Cap to the upper right.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/3615/266953_926fa7be14b78bd8_001 ...

Expanded Exploration Program
Based on the positive results obtained in the reconnaissance program, the 2025 field program will be expanded to carry out detailed sampling of the gossanous base metal bearing outcrop to:

• Determine the width of the zone.
• Trace the strike length of this zone.
• Determine the gold-silver tenor of this mineralization.

Another photo showing gossanous outcrops in the fore ground on the North Mitchell property with the above mentioned deposits in the back ground down Mitchell Creek.