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Terrain Minerals Limited (ASX:TMX) completed extensive exploration during the June 2026 quarter at its flagship Smokebush Project in Western Australia, with a maiden Mineral Resource Estimate for the Lightning gold deposit expected in July 2026. The company reported drilling 46 holes totaling 8,256 metres of RC and diamond drilling at Smokebush, alongside advancing rare earth and lithium exploration at other sites, following a $1.5 million capital raise in May 2026.
Key Points
- Terrain Minerals Limited (ASX:TMX) focuses on exploration of gold, silver, rare earth elements, lithium, and gallium projects in Western Australia.
- During the June 2026 quarter, 46 drill holes (8,256 metres) were completed at Smokebush, with Lightning gold intercepts including 8m at 6.87 g/t gold and 7m at 7.08 g/t gold.
- A maiden Starter Mineral Resource Estimate for Lightning is scheduled for July 2026, supported by metallurgical testing indicating conventional processing feasibility.
- In May 2026, Terrain raised $1.5 million before costs via placement of 375 million shares at $0.004 each to fund exploration and mining studies.
- Drilling at the Wildflower area confirmed an open gold-silver system with mineralisation below 130 metres, consistent with Lightning's depth profile.
- The Lort River rare earth project returned a top result of 8m at 3,349ppm TREO from 27m, while Carlindie defined a 4 by 3 kilometre gold-pathfinder soil anomaly.
Strong Drilling Results at Smokebush's Lightning Gold Prospect
Terrain Minerals’ wholly owned Smokebush Project, about 350 kilometres north of Perth in Western Australia’s Murchison Gold Region, remains the company’s primary exploration focus. The June 2026 quarter saw completion of 46 drill holes totaling 8,256 metres of RC and diamond drilling. The Lightning gold prospect now has a database of 97 RC holes and 4 diamond holes, amounting to approximately 16,000 metres drilled.
Recent Lightning gold results showed consistent mineralisation across multiple holes. Key intersections included 8 metres at 6.87 g/t gold from 76 metres in hole SBRC095, 7 metres at 7.08 g/t gold from 217 metres in hole SBRC106, and 5 metres at 3.26 g/t gold from 196 metres in hole SBRC114. Additional notable intercepts were 11 metres at 2.61 g/t gold from 86 metres in hole SBRC116 and 6 metres at 1.1 g/t gold from 169 metres in hole SBRC103. Silver assay results from Lightning drilling remain pending.
Diamond Drilling Underpins Maiden Mineral Resource Estimate Preparation
During the quarter, Terrain completed 4 diamond drill holes totaling 671 metres, including 340 metres of RC pre-collars and 331 metres of diamond tails. This diamond drilling provides vital density and geological data to support the maiden Mineral Resource Estimate at Lightning. Metallurgical test work has begun on Lightning samples, with early assessments indicating the gold is non-refractory, supporting conventional processing methods that may reduce technical risks in future development.
Exploration efforts have advanced multiple technical and approval workstreams needed for the maiden Starter Mineral Resource Estimate. Differential GPS surveys ensure spatial accuracy of drill data, and a topographic drone survey over mining lease M59/0796 supports mine design. These preparatory steps indicate progress toward a detailed understanding of Lightning’s economic potential. The maiden Mineral Resource Estimate is planned for release in July 2026, marking a significant project milestone.
Wildflower Drilling Confirms Extensive Open Gold-Silver System
Drilling at the Wildflower area involved 13 holes totaling 2,276 metres and confirmed an open gold-silver system across multiple targets. Gold was intersected in 8 of 13 holes across combined gold-in-soil and IP targets. Highlights included 1 metre at 6.05 g/t gold from 171 metres in hole SBRC132 and 1 metre at 4.38 g/t gold plus 20.34 g/t silver from 140 metres in hole SBRC122 within the Cota prospect.
Notably, the strongest intercepts at Wildflower occur below 130 metres depth, mirroring Lightning’s depth profile, suggesting continuity of the mineralising system across Smokebush. The system remains open at depth and along strike, indicating potential for further discoveries. A new induced polarisation survey has started over untested areas of Mining Lease M59/0796, including Hurley and Paradise City prospects, aiming to identify additional targets comparable to Lightning.
Haul Road and Environmental Approvals Progress Infrastructure Development
Terrain submitted an application for a haul road linking the mining lease to the Warriedar Coppermine Road, spanning approximately 7 kilometres. This haul road would support ore transport as well as gas, power, and water infrastructure, essential for potential mining operations at Smokebush. Flora and fauna surveys have been completed across tenements containing the Lightning Project (M59/0796) and Wildflower area (E59/2234), fulfilling environmental assessment requirements.
These infrastructure and environmental advances indicate progression beyond exploration toward development feasibility. Completion of surveys and haul road applications shows Terrain is navigating regulatory and environmental approvals. The company is also pursuing strategic partnerships to evaluate a small-scale toll milling operation, which could provide early cash flow and support broader drilling and development if technically viable.
Lort River Rare Earth Project Yields Significant TREO Results
At the 100%-owned Lort River project, 35 air-core drill holes totaling 897 metres revealed a broad rare earth element system. Post-quarter results showed strong total rare earth oxide (TREO) concentrations, with the best intercept being 8 metres at 3,349ppm TREO from 27 metres in hole LTAC028, including 6 metres at 4,230ppm TREO. A peak 3-metre composite returned 5,568ppm TREO with 37% heavy rare earth oxides.
Heavy rare earth oxides, valuable for industrial uses, represent a significant quality aspect of the Lort River mineralisation. The extensive mineralisation across 35 holes indicates a substantial rare earth system. This highlights Terrain’s exposure beyond precious metals, tapping into critical minerals with growing global demand.
Carlindie Project Reveals Major Gold-Pathfinder Soil Anomaly
At Carlindie, Terrain identified a large, coherent gold-pathfinder anomaly covering about 4 by 3 kilometres through initial soil sampling of 813 samples on a 200 by 200 metre grid. The anomaly includes arsenic, antimony, bismuth, tungsten, and caesium, and coincides spatially with a concealed greenstone target defined by machine-learning-assisted bedrock mapping, providing two independent lines of evidence.
Within this anomaly, a high-intensity bismuth-tungsten point-source was found at coordinates 736831 mE / 7704428 mN, with bismuth at 9.91 ppm and tungsten at 6.74 ppm, roughly ten times background levels. This site is the primary follow-up target for July 2026 field reconnaissance. A staged follow-up program will target this site and lithium areas with shallow cover. Starting August 2026, a cover-adapted CSIRO UltraFine+ soil program will refine the anomaly footprint and test its north-south extensions within exploration licence E45/6524.
$1.5 Million Capital Raise Supports Exploration and Mining Studies
In May 2026, Terrain raised $1.5 million via placement of approximately 375 million shares at $0.004 each to sophisticated and professional investors. Sharewise Capital Pty Ltd acted as lead manager, earning a 6% fee. Funds are allocated to the Lightning Mineral Resource Estimate, mining studies, exploration at Lort River and Carlindie, and general working capital.
This capital injection supports near-term exploration milestones and development work. With the maiden Mineral Resource Estimate due in July 2026, the funding enables continuation of technical studies and approvals. Investment in mining studies alongside resource estimation positions Terrain to evaluate development scenarios and engage potential toll milling or strategic partnerships.
Larin's Lane Gallium and Rare Earth Metallurgical Studies Await Release
Terrain’s Larin's Lane project within Smokebush tenements focuses on gallium and rare earth oxide mineralisation. Metallurgical studies under MRIWA Research Project M10528 have been completed. The company awaits sign-off from Curtin University and the Western Australia Mines Minister before releasing results, reflecting government-funded research protocols.
These studies assess processing options, recovery rates, and technical feasibility for mineral extraction. Once approved, results will provide key data to evaluate the economic potential of gallium and rare earth oxide mineralisation. This project adds diversification beyond gold and silver, exposing Terrain to additional critical mineral markets.
Marketing and Investor Outreach Boost Capital and Partnership Efforts
During the June 2026 quarter, Terrain engaged in extensive marketing and investor outreach. The company presented at the RIU Gold Coast Investor Conference in June 2026 and the RIU Sydney Resources Round-Up in May 2026, connecting with industry and retail investors.
Internationally, Terrain met institutional and family office investors at the 121 Mining Investment conference in New York in June 2026, followed by broker meetings and further investor engagement. These efforts aim to raise awareness among institutional, family office, and retail investors about Smokebush developments and broader portfolio opportunities, supporting future funding and partnership initiatives.
Portfolio Diversification Includes Critical Minerals Beyond Precious Metals
Terrain’s exploration portfolio spans gold, silver, rare earth elements, lithium, and gallium projects, diversifying across commodities with distinct market drivers and applications. Projects include Lort River (rare earths), Carlindie (lithium-gold), and Larin's Lane (gallium-rare earth oxides), providing exposure to minerals vital for batteries, renewable energy, and advanced manufacturing.
This diversification aligns with global demand trends and strategic mineral supply needs. Rare earths and lithium are essential for electric vehicles and renewable systems, while gallium is used in semiconductors and photovoltaics. By maintaining positions across these commodities alongside precious metals, Terrain aims to benefit from multiple commodity cycles and develop projects suited to varying market conditions, enhancing technical and market resilience.
