Beijing, September 2026 — Deep Exploration (Beijing) Technology Co., Ltd. (hereinafter "Deep Exploration") recently received a written letter of appreciation from Alto Grande Lithium S.A., sent across the ocean from Argentina. Unlike the immediate feedback that follows most project completions, this letter spans two years, with subsequent on-site drilling delivering a real-world verdict on the results.
The story dates back to 2024, at the Arizaro salt flat in Argentina — the heart of South America's lithium triangle — a vast and complex highland landscape. This globally watched lithium hotspot has attracted numerous mining companies, yet large-scale field surveys are costly there, and blind drilling and ineffective operations are common industry pain points. It was against this backdrop that the two sides formally began their cooperation.
Project at a Glance
The project is located in the Arizaro salt flat, Los Andes Department, Salta Province, at the core of Argentina's northern lithium triangle, with a target survey area of approximately 4.35 km². Facing the complex highland terrain, Deep Exploration applied its DeepExplor® satellite-based, remote, non-invasive AI detection technology, completing full-coverage detection and AI inversion analysis of the block from Beijing in an overall technical operation cycle of 58 days.
The results delineated 17 potential polymetallic anomaly zones covering four key strategic minerals — lithium, copper, molybdenum, and gold — with preliminarily estimated ore-body depths of 0–350 meters, locking in priority survey targets for the client and delivering key geological reference.
Deep Exploration's remote AI detection results: distribution map of copper, molybdenum, gold, and lithium polymetallic anomaly zones
In the two years after Deep Exploration completed its technical work, Alto Grande carried out on-site drilling validation based on the report's findings.
As Mr. Aldo Mariano Maioli, Chairman of Alto Grande, wrote in the letter: "The drilling results confirmed that the minerals predicted in the report do exist within the blocks recommended by Deep Exploration, and the actual positions of the ore bodies match the predicted locations with high accuracy."
Two years on, this letter of appreciation is the best testament to the real-world impact of the technical results, and it has given Deep Exploration valuable practical experience for its participation in South America's lithium resource development.
Client Letter of Appreciation (English Translation)
To the Board of Directors of Deep Exploration and geologist Mr. Juan Orozco:
Re: Results achieved by Deep Exploration's survey work
We hereby confirm in writing: Alto Grande Lithium S.A., for our mining project in the Arizaro salt flat, Los Andes Department, Salta Province, Argentine Republic, engaged Deep Exploration to undertake exploration and analysis services, and hereby acknowledges the results produced by this work.
Based on this survey, Deep Exploration delineated multiple blocks with exploration value, indicated the potential occurrence locations of some mineralized resources, and defined the target areas where subsequent exploration should focus.
After receiving the survey report, we designed and implemented drilling programs to validate, in the field, the analytical conclusions and survey targets presented in the report.
The drilling results confirmed that the minerals predicted in the report do exist within the blocks recommended by Deep Exploration, and the actual positions of the ore bodies match the predicted locations with high accuracy.
Deep Exploration's ability to pre-delineate high-value targets greatly improved the precision of our drilling deployment; the exploration search area was significantly narrowed, avoiding areas of low exploration value. As a result, our overall exploration program was optimized, saving substantial time, technical resources, and drilling costs.
We consider that the survey results fully validate the exploration services and technical work provided by Deep Exploration, as well as the professional technical support given throughout by geologist Juan Orozco, with highly satisfactory results.
We therefore extend our sincere gratitude to the Board of Directors, the technical team of Deep Exploration, and geologist Juan Orozco. The high quality and precise targeting of this work have greatly advanced our mining project.
With sincere regards,
Aldo Mariano Maioli
Chairman
Alto Grande Lithium S.A.
Original letter of appreciation from Alto Grande Lithium S.A.