Mineral Rights and Properties	9 Months Ended
Sep. 30, 2026
Mineral Rights and Properties
Mineral Rights and Properties	NOTE 3 - Mineral Rights and Properties Dakota Gold has 100% ownership of 2,147 unpatented claims and a combination of surface leases and/or ownership covering a total of approximately 50 thousand acres located in the Homestake District in the Black Hills of South Dakota. These rights include property rights in Maitland as well as the properties associated with the Barrick Option and the Richmond Hill Option discussed below. The individual claims, properties, options, and leases are aggregated into a single unit mining property, which we refer to as the “Black Hills Property.” On October 14, 2021, Dakota Gold entered into an option agreement (the “Richmond Hill Option”) with a wholly owned subsidiary of Barrick Gold Corporation (“Barrick”) to acquire 100% of Barrick’s interest in the Richmond Hill property. On September 7, 2021, the Company entered into an option agreement to acquire Barrick’s surface rights and certain facilities in the Homestake District (the “Barrick Option”). Under the terms of the Barrick Option, the Company has the option to acquire 4,261 acres of surface rights with attendant facilities and data. On February 6, 2025, the Company announced that Barrick agreed to extend the option period for both the Richmond Hill Option and the Barrick Option until December 31, 2028 in return for additional annual cash payments of $170,000 and $340,000, respectively, on each of March 1, 2026 (paid), March 1, 2027, and March 1, 2028. The Company will have 100% ownership of the Barrick Option and the Richmond Hill properties upon exercise of the underlying options. As of September 30, 2026 and December 31, 2025, the carrying value of the Company’s mineral properties totaled approximately $83.4 million and $82.9 million, respectively. As of September 30, 2026, we are in the exploration stage and have not commenced amortization of our properties. During the three and nine months ended September 30, 2026, the Company paid acquisition costs of approximately $nil and $0.8 million, respectively ($0.2 million and $0.2 million for the three and nine months ended September 30, 2025, respectively). The Company acquired additional mineral property in October 2026. See Note 11 - Subsequent Event.

Mineral Rights and Properties

9 Months Ended

Sep. 30, 2026

NOTE 3 - Mineral Rights and Properties

Dakota Gold has 100% ownership of 2,147 unpatented claims and a combination of surface leases and/or ownership covering a total of approximately 50 thousand acres located in the Homestake District in the Black Hills of South Dakota. These rights include property rights in Maitland as well as the properties associated with the Barrick Option and the Richmond Hill Option discussed below. The individual claims, properties, options, and leases are aggregated into a single unit mining property, which we refer to as the “Black Hills Property.”

On October 14, 2021, Dakota Gold entered into an option agreement (the “Richmond Hill Option”) with a wholly owned subsidiary of Barrick Gold Corporation (“Barrick”) to acquire 100% of Barrick’s interest in the Richmond Hill property. On September 7, 2021, the Company entered into an option agreement to acquire Barrick’s surface rights and certain facilities in the Homestake District (the “Barrick Option”). Under the terms of the Barrick Option, the Company has the option to acquire 4,261 acres of surface rights with attendant facilities and data. On February 6, 2025, the Company announced that Barrick agreed to extend the option period for both the Richmond Hill Option and the Barrick Option until December 31, 2028 in return for additional annual cash payments of $170,000 and $340,000, respectively, on each of March 1, 2026 (paid), March 1, 2027, and March 1, 2028. The Company will have 100% ownership of the Barrick Option and the Richmond Hill properties upon exercise of the underlying options.

As of September 30, 2026 and December 31, 2025, the carrying value of the Company’s mineral properties totaled approximately $83.4 million and $82.9 million, respectively. As of September 30, 2026, we are in the exploration stage and have not commenced amortization of our properties. During the three and nine months ended September 30, 2026, the Company paid acquisition costs of approximately $nil and $0.8 million, respectively ($0.2 million and $0.2 million for the three and nine months ended September 30, 2025, respectively). The Company acquired additional mineral property in October 2026. See Note 11 - Subsequent Event.