Vanguard Mining Expands South American Uranium Portfolio with Acquisition of Yuty Prometeo Project in Paraguay

Vanguard Mining Corp. has closed the acquisition of the Yuty Prometeo Project in southeastern Paraguay, comprising four concessions spanning approximately 90,000 hectares within the prolific Paraná Basin. The project area is located adjacent to Uranium Energy Corp.'s established Yuty Deposit, which hosts an Indicated resource of 8.96 million pounds of U₃O₈.

David Greenway, CEO of Vanguard Mining Corp., stated that closing on the Yuty Prometeo concessions represents a major milestone for the company and underscores its commitment to building a dominant uranium portfolio in South America. Paraguay offers a unique combination of political stability, investor-friendly policies, and untapped mineral potential that make it an ideal jurisdiction for long-term uranium exploration.

The acquisition follows company updates issued on April 17, 2025, regarding the engagement of senior geologist Ariel Testi to prepare an initial NI 43-101 technical report, and June 17, 2025, regarding the execution of a Definitive Share Purchase Agreement to acquire 100% of 1302343 B.C. Ltd., which holds an 85% interest in Paraguay Uranium S.A.

The Yuty Prometeo Project consists of four concessions—three San Jose concessions and one Prometeo concession—covering a combined area of approximately 90,000 hectares within the uranium-rich Paraná Basin. The Prometeo Concession spans approximately 27,666 hectares and is directly contiguous to UEC's Yuty Project. Historical records reference 28 drill holes on the property, with uranium values ranging from 0.05% to 0.10% U₃O₈.

Data from previous work by the Anschutz Corporation suggests that the Prometeo block lies on trend with UEC's adjacent Transandes block. The San Jose Concessions encompass approximately 62,210 hectares across three contiguous claims situated along the Upper Permian–Carboniferous contact, approximately 100 km northwest of UEC's Yuty Project and 40 km west of its Coronel Oviedo Project.

UEC's adjacent Yuty ISR Project, covering approximately 117,359 hectares in southeastern Paraguay, hosts an Indicated resource of 8.962 million lbs and an Inferred resource of 2.203 million lbs U₃O₈, as disclosed in its July 1, 2022, technical report titled Yuty Uranium Project Initial Assessment US SEC Subpart 1300 Regulation SK Report, Paraguay SA. The project has been identified as amenable to in-situ recovery, the same extraction method UEC employs at its operations in Texas.

The Republic of Paraguay is an emerging mining jurisdiction in the heart of South America, bordered by Brazil, Argentina, and Bolivia. Known for its political stability, low sovereign risk, and investor-friendly regulatory environment, Paraguay offers a supportive framework for mineral exploration and development. The country has a democratic government, strong legal protections for foreign investment, and a growing interest in unlocking its untapped mineral potential.

The company also announced it has granted 800,000 Restricted Share Units to officers and directors of the company, valid for a term of one year under the terms of the company's Restricted Share Unit Plan. All RSUs expire on September 1, 2026.

The scientific and technical information contained in the news release has been reviewed and approved by Lawrence Segerstrom, a consulting geologist who is a Qualified Person as defined under National Instrument 43-101. Vanguard cautions that mineralization on adjacent properties is not necessarily indicative of mineralization on the company's own projects.