Flagstone — Does the work support the claim?
FLAGSTONE
AI BUILT FOR THE MINING INDUSTRY

Automated due diligence for technical reports.

Every mining technical report runs hundreds of pages behind a single number. Flagstone reads the report and tells you whether the work actually holds up — benchmarked against comparable projects, graded against what the study stage should deliver.

Automated due diligence for NI 43-101 technical reports.
01 — WHAT IT DOES
I.

Reads the report

Upload an NI 43-101. Flagstone detects the study stage and the processing method, and pulls the metallurgy, recovery, costs and resource basis.

II.

Benchmarks against peers

Every key figure is placed against the expected range for comparable projects — not a ranking, a position within what's normal for the stage.

III.

Grades the defensibility

It assesses whether the disclosed work supports the claims, and reads the metallurgy the way a reviewer would — then gives you one clear, reproducible grade, with the full reasoning shown.

02 — THE DIFFERENCE

Not just what the report says. Whether you can trust it.

Plenty of tools extract and compare the numbers in a report. Flagstone does something different — it asks whether the work behind those numbers actually supports them, judged against what a PEA, PFS or feasibility study is each expected to demonstrate. The conclusion stays with you. Flagstone just gets you to it faster.

03 — COVERAGE

What Flagstone reads today

04 — READING SOON

Beyond NI 43-101.

Canada's reporting code is where Flagstone starts. Next, the same assessment for the other major codes.

AUSTRALASIA COMING SOON

JORC reports

Mineral resource and ore reserve reports under the JORC Code.

UNITED STATES COMING SOON

S-K 1300 reports

Technical report summaries filed under SEC Regulation S-K 1300.

05 — SEE IT

See a Flagstone report

Three real technical reports, assessed across the study stages:

Each shows the benchmark position, the grades with full reasoning, and exactly how the final grade was reached. Nothing hidden.

06 — HOW IT WORKS

How it works

STEP 01 Upload your report
STEP 02 Flagstone reads, benchmarks and grades the work
STEP 03 Get your graded assessment in minutes

Pay per report. No account needed.

Assess a report →
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07 — THE STORY

Hi! I'm Nico — a mining engineering student from Chile, working in metallurgy in Canada, and passionate about technology and making processes work better. I spend my days around different mining reports, and I kept thinking the same thing: there's no fast, honest way to tell whether the work behind a report actually holds up.

So I built one. Flagstone is that tool — made by someone who works in this world, for the people who have to trust these reports.

It's early, it's growing, and I'd genuinely love your feedback.