Mr. Colin Healey reports

PREMIER AMERICAN URANIUM COMMENCES 100,000 FT EXPLORATION DRILLING PROGRAM AT THE KAYCEE ISR URANIUM PROJECT, WYOMING

Premier American Uranium Inc. has commenced its 2026 exploration drilling program at the company's wholly owned Kaycee project, located in the Powder River basin of northeastern Wyoming.

The 2026 exploration program is designed to build on positive drilling results from 2025 (see press release dated Jan. 20, 2026), with the primary objectives of infilling between areas of known uranium mineralization and further delineating subsurface host channels across key target areas at the project.

Highlights

• Total of approximately 100,000 feet of proposed drilling commenced on May 5, 2026, focused on the following high priority target areas:
  • Approximately 33,000 ft of stepout drilling planned at the Outpost target;
  • Approximately 51,000 ft of drilling planned at the Rustler target;
  • Approximately 16,000 ft of stepout drilling planned in the vicinity of historic coal bed methane (CBM) wells.
• Professional survey work is underway for approximately 500 exploration drill hole collars and 100 historic CBM well collar locations in support of anticipated future mineral resource estimation.
• Recent claim staking has increased PUR's Kaycee land position to approximately 29,841 combined acres of federal, state and private surface lands.

In conjunction with the drilling program, the company has engaged professional surveying contractor, William H. Smith, to complete a project-wide drill hole collar and elevation survey. The survey work is intended to support future mineral resource estimation initiatives and continuing technical evaluation of the project.

Colin Healey, chief executive officer and director of Premier American, commented: "The commencement of our 2026 drilling program marks another important step in advancing the Kaycee project. Building on the success of our 2025 exploration efforts, this year's program is designed to expand and better define known areas of mineralization while continuing to evaluate the broader potential of the project. With approximately 100,000 ft of planned drilling and an expanded land position, we believe Kaycee continues to demonstrate significant exploration upside potential within one of the most prospective uranium basins in the United States."

The majority of the 2026 drilling program will focus on the Outpost target and the Rustler target, where previous drilling has identified encouraging uranium mineralization associated with favourable roll-front host geology. Additional drilling near historic CBM wells is intended to test newly interpreted targets and expand the company's understanding of mineralized trends throughout the project area.

The project now encompasses approximately 29,841 acres of federal, state and private land surface rights following recent claim staking initiatives aimed at consolidating and expanding the company's strategic footprint within the Powder River basin.

Kaycee project

The Kaycee project in Wyoming's Powder River basin consists of over 46 square miles of mineral rights over a 36-mile mineralized trend hosting more than 110 miles of identified roll fronts. The project is believed to be the only project in the PRB where all three known historically productive sandstone formations (Wasatch, Fort Union and Lance) are mineralized and potentially accessible for ISR extraction. The project represents the largest grassroots ISR exploration in the United States, with upwards of 400,000 feet of drilling completed since 2023.

Kaycee anchors one of the strongest exploration portfolios in Wyoming, combining with PUR's Cyclone project in the Great Divide basin to drive one of the largest continuing drilling programs in the state. Additional staking has further expanded its presence in both of the state's major ISR-amenable uranium districts.

Qualified person statement

The scientific and technical information contained in this news release was reviewed and approved by J.J. Brown, PG, SME-RM, a consultant of Premier American, who is a qualified person as defined by National Instrument 43-101 -- Standards of Disclosure for Mineral Projects. Ms. Brown has verified the data disclosed in this news release, including sampling, analytical and test data underlying the information contained herein.

Other information regarding the company's Kaycee project, including with respect to the quality assurance and quality control measures applied during the work program can be referenced from the technical report entitled "Technical Report for NI 43-101 Kaycee Uranium Project, Johnson County, Wyoming USA," dated Sept. 21, 2025, which is available under the company's profile on SEDAR+.

About Premier American Uranium Inc.

Premier American Uranium is focused on consolidating, exploring and developing uranium projects across the United States to strengthen domestic energy security and advance the transition to clean energy. The company's extensive land position spans five of the nation's top uranium districts, with active work programs under way in New Mexico's Grants mineral belt and Wyoming's Great Divide and Powder River basins.

Backed by strategic partners including Sachem Cove Partners, IsoEnergy Ltd., Mega Uranium Ltd. and other leading institutional investors, Premier American is advancing a portfolio supported by defined resources and high-priority exploration and development targets. Led by a distinguished team with deep expertise in uranium exploration, development, permitting, operations and uranium-focused M&A (merger and acquisition), the company is well positioned as a key player in advancing the United States uranium sector.

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