Hertz Energy Finalizes Advanced Airborne Magnetic and VLF-EM Survey at Lake George Antimony-Tungsten Project, New Brunswick

Strategic Land Holdings Around North America’s Historic Antimony Producer

Hertz Energy has consolidated five mineral claims totaling 4,392.4 hectares encircling the Lake George Antimony Mine on three sides. These claims, staked in September 2024 and April 2025, encompass approximately 13 kilometres of favourable strike length in New Brunswick, about 38 kilometres southwest of Fredericton. This strategic location exposes the company to the same geological environment and structural controls that supported North America’s largest primary antimony producer during its intermittent operation from 1876 to 1996.

The property straddles the contact between Silurian Kingsclear Group metasedimentary rocks and Devonian intrusive rocks of the Pokiok Plutonic Suite, the geological setting that hosted historic antimony mineralization. Despite favourable geology, much of Hertz Energy’s property has seen limited historical exploration, with extensive areas covered by thin glacial and lacustrine sediments potentially masking mineralization beneath shallow overburden. This geological framework, combined with multiple interpreted cross-cutting structures prospective for antimony, tungsten, and gold, underpins the company’s systematic exploration strategy.

Advanced Airborne Survey Details and Data Collection

The survey, flown by Novatem Airborne Geophysics from June 21 to 25, 2026, covered 56.66 square kilometres with 1,194 line-kilometres flown on 50-metre line spacing and 500-metre control lines, maintaining a median terrain clearance of about 23 metres. It utilized dual optically pumped magnetic sensors operating at 1,000 measurements per second alongside a three-component VLF-EM receiver, providing much higher resolution than historical regional airborne geophysical data.

This cutting-edge geophysical dataset enables Hertz Energy to precisely delineate geological contacts, fault systems, structural breaks, and intrusive bodies that could host antimony, tungsten, and gold mineralization. The company reports the survey delivers a detailed geophysical framework across the historic Lake George Mine and its surrounding claims, highlighting several magnetic and structural features extending onto its property that merit further exploration. The new data is expected to significantly enhance geological interpretation by identifying key structures controlling mineralization distribution.

2026 Summer Exploration Program and Methodology

Hertz Energy’s 2026 summer field program adopts a comprehensive exploration approach integrating geophysics, geochemistry, and drilling to advance the project from target generation to discovery and potential resource definition. The program includes prospecting and mapping focused on known outcrops and potentially favourable zones identified via topographic and LiDAR surveys, incorporating geological mapping, rock geochemistry, and structural analysis.

A soil geochemistry survey will assess the potential for concealed antimony-tungsten mineralization by analyzing geochemical dispersion in surface materials. Sample locations will be selected based on local quaternary geology, satellite imagery, and LiDAR data. Should promising targets emerge, Hertz Energy plans to conduct ground induced polarization (IP) surveys to refine drill targets. Positive IP results could lead to up to 3,000 metres of diamond drilling later in 2026, contingent on prior exploration outcomes.

Critical Mineral Status and Global Supply Chain Implications

Antimony is recognized as a critical mineral in Canada and the United States due to its strategic importance in national security and industrial supply chains. Its primary use is as a flame retardant, with additional applications in solar panels and batteries. The U.S. Department of the Interior designates antimony as critical because it is essential for armour-piercing ammunition, infrared sensors, and precision optics, emphasizing the strategic value of domestic North American antimony resources.

In August 2024, China announced antimony export restrictions effective September 15, 2024, significantly impacting the global supply chain. Chinese exports are declining medium-term due to increased solar energy demand, while Russian supply is constrained by reduced output and Western sanctions. Supply from other producers like Vietnam, Tajikistan, and Myanmar has been disrupted by rerouting shipments from the Red Sea amid Houthi attacks. Analysts estimated a 10,000-tonne market shortfall prior to China’s export restrictions, highlighting the strategic importance of North American projects like Hertz Energy’s Lake George.

Regional Geology and Mineralization Controls

The Lake George area features intrusion-related hydrothermal mineralization hosting antimony, gold, tungsten, and molybdenum district-wide. Hertz Energy’s consolidated claims capture structural features interpreted as extensions of the historic Lake George Mine’s northeast-trending fault system within a broader hydrothermal system. The company believes these geological and structural elements indicate potential mineralized system extensions onto its claims, pending exploration verification.

The property benefits from excellent local outcrop for prospecting, while subsurface potential remains largely untested due to minimal modern exploration. The combination of favourable host rocks, documented historic mineralization, interpreted structural controls, and thin overburden establishes a strong geological foundation for systematic exploration. The recent high-resolution airborne survey provides the technical basis for future target generation and prioritization in this underexplored district.

Avenir Minerals’ Adjacent Development and Provincial Strategy

Avenir Minerals, a subsidiary of Agnico Eagle Mines, was selected by the New Brunswick government to explore and potentially restart the historic Lake George Antimony Mine. Following a provincial call for expressions of interest in spring 2026, Avenir was chosen to negotiate an exclusive exploration agreement for the former mine site. This aligns with New Brunswick’s Comprehensive Minerals Strategy aimed at revitalizing the province’s mineral sector and increasing domestic critical mineral production.

Hertz Energy expressed eagerness to collaborate with Avenir Minerals on exploration and development in the Lake George region. The presence of an established operator with significant resources adjacent to Hertz’s claims may foster operational synergies and support regional mining infrastructure. The provincial government’s strategic focus on critical minerals and selection of a major mining company subsidiary to advance the historic mine site contextualizes Hertz Energy’s exploration activities.

Agastya Lithium Project Overview in James Bay, Quebec

Hertz Energy holds 100% interest in the Agastya Lithium Project in James Bay, Quebec, consisting of 209 mineral claims covering approximately 10,650 hectares across three non-contiguous blocks within the James Bay greenstone belt. The property lies 26 kilometres southeast of Patriot Battery Metals’ Corvette Lithium Project and adjacent to LI-FT Power’s recently consolidated Adina and Galinée projects. The Agastya claims are situated within a strongly anomalous lake bottom sediment trend, indicating potential lithium-cesium-tantalum pegmatite mineralization.

The Agastya Property is located along the same structural belt as major lithium discoveries including Adina by Winsome Resources and Galinée by Azimut Exploration, now consolidated by LI-FT Power (TSXV:LIFT). This consolidation forms a district-scale lithium project immediately adjacent to Hertz Energy’s claims, positioning Agastya at the core of one of Canada’s most significant emerging lithium districts. Although Hertz Energy’s near-term focus remains on the Lake George antimony-tungsten project, Agastya represents a promising greenfield lithium exploration opportunity.

Management Insights on Project Progress

Kal Malhi, CEO of Hertz Energy, stated that completing the high-resolution airborne survey marks a key milestone for advancing the Tungmony Project. He highlighted that the company has secured one of the largest strategic land positions surrounding the historic Lake George Antimony Mine and that the new geophysical data provides a solid foundation to systematically assess the property’s exploration potential. Malhi emphasized that the survey greatly improves understanding of the project’s structural framework and is critical for identifying and prioritizing drill targets.

Malhi added that combined with Hertz Energy’s acquisition of the Lake George Mine historical database, the upcoming prospecting, mapping, and soil geochemistry programs position the company to unlock the district’s broader potential, which has seen limited modern exploration despite its history as North America’s largest primary antimony producer. He noted that with antimony’s critical mineral status and constrained global supply, Hertz Energy believes Lake George is well-positioned to meet growing demand for secure North American sources. The CEO expressed enthusiasm about advancing the project through the 2026 exploration program and updating shareholders as results emerge.

Qualified Person Statement and Technical Oversight

All scientific and technical information in this release related to the Lake George Project was prepared and approved by Paul Teniere, P.Geo., Technical Advisor to Hertz Energy and a Qualified Person under National Instrument 43-101. Information concerning the Agastya Project was prepared and approved by Louis Martin, P.Geo., Technical Advisor and Qualified Person under NI 43-101.

The release includes scientific and technical data regarding adjacent or other properties near Hertz Energy’s Lake George and Agastya projects in which the company holds no interest or exploration rights. Readers are cautioned that geology, mineralization, and historical production information from these adjacent properties may not indicate similar potential on Hertz Energy’s properties. The company does not own and has no rights to explore the former Lake George Antimony Mine site itself.