Mr. Alson Niu reports

RT MINERALS ACCELERATES EXPLORATION WITH UAV SURVEY AT CASE BATHOLITH

RT Minerals Corp. has provided an update on its 2025 exploration activities at the Case batholith property in Ontario. The company has officially engaged a geophysical contractor to conduct a high-resolution UAV (unmanned aerial vehicle) magnetic survey over key areas of the property.

This work is financed and forms the foundation of RT Minerals' 2025 exploration program aimed at identifying priority targets for lithium and cesium mineralization. Preparations are under way, with the technical team currently co-ordinating logistics and scheduling. The UAV survey is expected to be completed over the next few months, with final results anticipated by Q3 2025. The company remains focused on advancing the Case batholith project through a structured and results-driven approach, beginning with this geophysical survey to refine drill targeting and maximize exploration efficiency.

In light of growing concerns surrounding global critical mineral supply chains -- further exacerbated by China's recent suspension of critical element exports to the United States -- the company is accelerating efforts to advance Case batholith as quickly and strategically as possible. Due to these developments, RT Minerals intensifies its focus on and hones in on the Case batholith property as one of the core focuses for the company.

Recent developments have significantly heightened the urgency for securing alternative sources of critical minerals. The United States has escalated its trade measures against China, with tariffs on certain Chinese imports reaching up to 245 per cent (White House Fact Sheet -- April, 2025). In response, China has imposed 125-per-cent tariffs on U.S. goods and implemented export controls of vital rare-earth elements and other critical minerals (Reuters, April, 2025). These materials are crucial for manufacturing semiconductors, electric vehicles and defence technologies.

China's new export licensing requirements have caused significant delays, leading to a near halt in rare-earth exports and raising concerns over potential shortages in industries that depend on these critical inputs (Reuters -- April, 2025).

RT Minerals is committed to addressing these challenges by accelerating the development of its Canadian-based critical mineral assets. The company aims to position itself as a stable and sustainable supply of these essential materials to support North American industries and reduce reliance on foreign sources.

Case batholith is a large intrusive geological formation approximately 150 kilometres by 60 kilometres in size, located in Northeastern Ontario. It includes the Case Lake area, which has been identified in geological studies as prospective for lithium, cesium and rare-earth elements.

About RT Minerals Corp.

RT Minerals is a junior exploration company listed on the TSX Venture Exchange under the symbol RTM. The company holds a 100-per-cent interest, largely royalty-free, in a portfolio of rare-earth element and base metal properties in Ontario, Canada.

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