Vanguard Mining Expands South American Uranium Holdings with Paraguay Acquisition

Vanguard Mining Corp. has completed the acquisition of the Yuty Prometeo Project in southeastern Paraguay, significantly expanding its uranium portfolio in South America. The four concessions spanning approximately 90,000 hectares are located within the prolific Paraná Basin, one of South America's most promising uranium regions, and are positioned directly adjacent to Uranium Energy Corp.'s established Yuty Deposit.

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. He emphasized Paraguay's 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 several company updates throughout 2025, including the engagement of senior geologist Ariel Testi to prepare an initial NI 43-101 technical report, initiation of site visits and data compilation in Paraguay, and 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, with the Prometeo Concession spanning approximately 27,666 hectares 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. A radiometric car survey conducted over a 40 km by 10 km area delineated significant uranium anomalies across the property. According to technical information available at https://www.sec.gov/Archives/edgar/data/1334933/000143774922017351/ex_396105.htm, UEC's adjacent Yuty ISR Project hosts an Indicated resource of 8.962 million pounds and an Inferred resource of 2.203 million pounds U₃O₈.

This acquisition is strategically significant as it positions Vanguard in one of South America's most promising uranium districts during a period of growing global demand for nuclear energy and critical minerals. The proximity to UEC's established project, which has been identified as amenable to in-situ recovery extraction methods, provides valuable geological context and exploration potential. As detailed in UEC's previous announcements available at https://www.uraniumenergy.com/news/releases/index.php?content_id=910, the region has demonstrated substantial uranium potential.

The Republic of Paraguay offers a supportive framework for mineral exploration and development with its political stability, low sovereign risk, and investor-friendly regulatory environment. The country's democratic government and strong legal protections for foreign investment create favorable conditions for long-term mining investments, particularly in uranium and other critical minerals essential for the global clean energy transition.

Vanguard's management cautions that past results or discoveries on properties adjacent to the company's projects may not be indicative of mineralization on its own properties. The company also announced the granting of 800,000 Restricted Share Units to officers and directors, valid for one year under the terms of the company's Restricted Share Unit Plan.