By Charles Pitts
Trigg Mining just outlined a massive 27 million ton sulphate of potash (SOP) exploration target at Lake Throssell, potentially reshaping Western Australia’s potash landscape.
Key Takeaways
- Trigg Mining’s Lake Throssell project shows an initial Exploration Target of up to 27 million tons of SOP at grades between 9,000 and 10,000 mg/L.
- The 70-kilometer strike length target sits within a total 112-kilometer palaeovalley under tenure in Australia.
- Ongoing drilling programs, including 50-hole air-core drilling, aim to support a maiden Inferred Mineral Resource estimate.
- The project benefits from nearby infrastructure such as rail at Leonora and gas pipelines at Yamarna.
Unpacking Trigg Mining’s Lake Throssell SOP Exploration Goal
Trigg Mining Limited (ASX: TMG) revealed a substantial exploration target for its 100% owned Lake Throssell SOP project, located 170 kilometers east of Laverton, Australia. Specifically, the Exploration Target ranges from 7.5 million to 27 million tons of SOP within the interpreted palaeovalley. Grades vary between 9,000 and 10,000 mg/L SOP equivalent. However, these figures remain hypothetical as further work must confirm the Mineral Resource estimate.
The exploration target covers an initial 70 kilometers of strike length along a 112-kilometer palaeovalley system. Trigg is actively applying for neighboring tenements on the north and south, potentially expanding the project’s extent and resource. High-grade brines and multiple aquifer zones have been identified, giving confidence to the use of trenching and deep development bores for extraction. This setup promises a potentially low-cost, long-life SOP operation.
Drilling programs to date include 16 lake surface hand auger holes in 2019, a 200-kilometer gravity survey in 2020, 26 heli-rotary auger holes, and an ongoing air-core drilling program with 50 planned holes. Early results confirm consistent high-grade brine at both surface and deeper levels, supporting the continuity of brine resources. Trigg is advancing through these stages to complete its first Inferred Mineral Resource estimate shortly.
Strategically, Lake Throssell’s location near logistic hubs such as Leonora rail, Laverton airport, and Yamarna gas pipeline provides vital infrastructure. Upcoming upgrades to the Great Central Road aim to improve access and facilitate project development. This combination of geology and infrastructure positions the project well for future commercial production.
Industry Impact: What This Means for Australian Potash Mining
Trigg Mining’s announcement dramatically strengthens the prospects of Australia as a growing potash supplier. The discovery of a potential 27 million ton SOP target at Lake Throssell adds significant volume to the country’s emerging SOP scene. Industry giants like Wesfarmers’ Sulphate of Potash operations might face new competition as Trigg advances its resource toward production scale.
Furthermore, Trigg’s project introduces a multi-decade, high-grade potash opportunity located in a well-served region. This could catalyze further investments into Western Australia’s brine-based potash sector. The project’s proximity to existing infrastructure reduces capital intensity, encouraging rapid development and downstream processing initiatives.
Ultimately, Trigg Mining’s progress at Lake Throssell signals a diversification of Australia’s potash sources beyond traditional evaporite deposits. This may stimulate innovation in extraction methods, contributing to broader supply chain stability and competitive pricing for global markets.
Market Analysis: Potash Pricing Trends and Investment Prospects
Global demand for sulphate of potash remains robust, driven by agricultural needs focused on sustainable fertilizers. Current SOP prices range widely based on source, often exceeding $800 per ton. Trigg Mining’s high-grade brine resource, with potassium at around 9,000 to 10,000 mg/L, suggests a competitive advantage due to efficient solar evaporation and high product purity.
Investors should note that the Lake Throssell project targets a resource that could span several million tons annually over decades. This scalability could significantly impact supply balances, particularly in the Asia-Pacific region where potash imports are growing. Nevertheless, further exploration and feasibility studies will refine capex and operating costs, key variables influencing investment returns.
As of now, ongoing drilling and analysis appear to support favorable AISC and potential scale economies, strengthening the investment case. Market watchers can monitor developments aligning with broader fertilizer sector trends and regional infrastructure improvements.
Future Outlook: Key Milestones for Trigg Mining’s Lake Throssell Project
The immediate focus for Trigg Mining is completing the 50-hole air-core drilling program by the end of February 2021. Assay results should follow within four weeks, providing clarity on brine grade distribution and deposit geometry. These results are a crucial step toward defining a maiden Inferred Mineral Resource estimate.
Looking beyond, Trigg plans surface test pitting, trenching by Q2 2021, and water well drilling in H2 2021 to validate aquifer properties. These activities aim to upgrade resource confidence to Indicated status and pave the way for economic studies. Investors should watch these milestones closely as they dictate the project’s path to development and eventual production.
Conclusion: Why Trigg Mining Potash Australia Deserves Investor Attention
Trigg Mining’s Lake Throssell project has established an impressive 27 million ton SOP exploration target that could become a major potash supplier in Australia. The strategic location and promising resource quality reinforce its investment appeal. As exploration advances toward a formal Mineral Resource estimate, the Trigg Mining potash Australia opportunity demands close attention from investors expecting growth in sustainable fertilizer markets.


