Geochemical laboratory and sample preparation in San Juan
Every meter drilled in the copper and gold boom generates samples someone prepares and assays — and until April 2026 they all traveled more than 400 km to Mendoza, losing days of logistics. In April a national entrant, Lenor, put USD 4 M into the province's first mining laboratory: proof that the market is real and pays today, without waiting for FID or RIGI. That first move didn't close the game, it shifted it: the advanced prep-lab in the northern corridor —150-250 km from the drill holes Lenor left uncovered— and NI 43-101 resource analytics, still without a local owner, remain open. The sales pitch is not price: it is turnaround, cutting days off the geologist who, with each result, decides where the hole goes next.
The TAM is analytical activity, not capturable spoils. Feasibility metallurgical testwork is resolved in Chile or Perth, the grade control of operating mines is internalized by Veladero and Gualcamayo, and the Chilean side of Filo del Sol is left out: that is captive. Your real gap is the preparation and exploration geochemistry of the Argentine programs, plus water and geotechnics —all billable from San Juan—: the addressable segment.
This niche's driver is provincial: San Juan's Local Mining Development Law reserves part of procurement for the local supplier and turns provincial qualification (RE.PRO.MIN) into an advantage: every assay billed in San Juan scores. Each rule opens in the reforms panel on the home page, with its status and primary source.
enablesSan Juan: 80/60 local mining procurementRequires miners to direct 60% of their procurement to registered San Juan suppliers —as long as they offer competitive terms—: each assay billed from San Juan counts toward the target, and the same assay done in Mendoza does not. It makes the RE.PRO.MIN seal the key to the copper majors' quota and enlarges the local laboratory's addressable market.see the reform →This market does not float on its own: concrete megaprojects drive it. These are the ones moving demand for this niche — each with its investment and status.
The largest mining project in Argentine history and the first copper PEELP: it integrates Josemaría and Filo del Sol (copper/gold/silver) in the San…
see the project →Leach-based copper cathode project in Calingasta (San Juan). Company/press figures (probable, outside the resolution): resources of ~10,900 M lb Cu…
see the project →Phase 1 of the largest undeveloped copper deposit in Argentina alongside Vicuña: a resource declared by Glencore of ~6,000 Mt @ 0.43% Cu, 2.2 g/t Ag…
see the project →Who splits the market, where you get in, what pays and what could break it.
already in
split
The largest geochemical lab in the country in Maipú, Mendoza (2019); 7 sites, NONE in San Juan verif site opened Jul 19, 2026; stated in May-2026 that it is 'considering setting up in the province' prob note 403 — the #1 competitive signal to watch
No confirmed facility in Argentina (locations 404 as of Jul 19); captures the Canadian juniors (NGEx, Aldebaran, McEwen) via its Santiago/Lima hub — the NI 43-101 standard
No geochemical lab in SJ; Veladero water + FS metallurgical testwork centralized in Chile/Perth (captive segment)
PASS FINDING: opened Apr 29, 2026 in Chimbas (8,000 m², USD 4 M, 30→110 jobs, geochemistry/metallurgy/environmental, OAA) verif official primary source sisanjuan.gob.ar opened with our own eyes; initial capacity 5,000 samples/month fire assay prob; no confirmed ISO 17025 geochemistry or 43-101 track record
No commercial scale; a talent pool of technicians that Lenor already absorbs
The first gap —'there is not a single laboratory in the province'— closed on April 29, 2026, when Lenor took it. What remains open is finer and still vacant. Enter from the side, not against the plant Lenor has already set up:
An advanced prep-lab in the northern corridor (Rodeo/Iglesia). Lenor ended up in Chimbas, 150-250 km from the drill holes of Vicuña, Lunahuasi and Veladero; a preparation outpost —drying, crushing, pulverizing— cuts 1-3 days and ~80% of the transported weight, and ships the pulp to both Mendoza and Chimbas. Anchor client: Vicuña (50,000 m tendered, renegotiating its entire logistics) and NGEx (30,000 m at Lunahuasi, with no infrastructure of its own).
NI 43-101 resource analytics remains without a local owner —not even Lenor has it—: enter via a JV or franchise with a global brand (Actlabs, Bureau Veritas, MSALABS) or be the local partner of the landing Alex Stewart is already evaluating. RE.PRO.MIN, which requires ≥51% San Juan capital, structurally pushes toward that partnership format.
The water and environmental laboratory, with no 43-101 lock and growing demand from the water conflict: a triple client —operators (compliance), the provincial State (royalty auditing) and communities (an independent check sample)—. Lenor also listed it, so the window calls for speed.
USD 3-6 M/year (~35-45%): FS metallurgical testwork in Chile/Perth (SGS/ALS; Nuton is proprietary), international umpire/settlement, grade control internalized on-site (Veladero/Gualcamayo), the Chilean side of Filo del Sol
USD 5-9 M/year: prep + exploration geochemistry of the Argentine programs + water/environmental + geotechnics + Hualilán toll-milling settlement. The Local Mining Development Law (60% procurement, 'competitive market terms' valve) ENLARGES it: an assay billed from SJ counts toward the target, one from Mendoza does not. Lenor's entry proves the SAM was real — and starts to occupy it
For a NEW entrant post-Lenor: USD 1-2 M/year as an advanced prep-lab + water; USD 2.5-4.5 M/year if entering with a global brand (JV/franchise — 43-101 analytics remains vacant). The wedge shrank ~a third because of Lenor
effect
Direct jobs: prep-lab 15-30 positions; full analytical lab 40-80 estim calibrated by the real case: Lenor started with 30 and projects 110, verified in official primary source. Formal annualized employment, indoors and with no altitude regime. Entry trade without a degree: 'sample preparer' is learned in weeks — the analog of the drilling assistant. Degree band: UNSJ chemistry/geology/engineering now have a first provincial employer in a commercial lab (until April they emigrated to Mendoza or to the mine); a second employer turns the trickle into a labor market. Linkage: daily freight Iglesia/Calingasta→capital (before they went whole to Mendoza), consumables, calibration, short certifiable courses (QA/QC, sample handling). Systemic effect: an accredited local lab = independent royalty auditing for the State and a credible check sample for communities in water conflicts — trust infrastructure.
calculate it
Concentration Until Apr-2026: an oligopoly of 3 globals + 1 regional resolved in ONE facility (Alex Stewart Maipú, Mendoza) + Chilean hubs — estimated HHI >3,000 estim. Since Apr 29, 2026 there is one (1) installed capacity in the province (Lenor, ramping up) and the regional incumbent is evaluating entry: still concentrated but the board moved for the first time in a decade. No incumbent publishes volumes by province — every share is our own stated estimate.
The obvious name —'the mine'— is not a single door. The laboratory's money comes in through different channels depending on the type of assay, and each is billed to a different client. In exploration the operator contracts directly — not via EPCM:
A per-campaign framework contract with Vicuña (50,000 m), NGEx/Lunahuasi (30,000 m), McEwen/Los Azules, Aldebaran/Altar and Glencore/El Pachón — prices by assay code, turnaround SLA, monthly billing Sep-May. Exploration is handled by the project owner, not the plant EPCM.
Today SGS operates Veladero's participatory water monitoring; the baselines of Josemaría/Los Azules/El Pachón and INA-CRAS's pressure on the pumping (1,200 l/s) open new contracts. A segment with no NI 43-101 lock.
When Vicuña and Los Azules operate, process control is tendered by the mine (the globals operate it under contract on the premises) and the export-concentrate settlement/umpire (~395 kt Cu/year from Vicuña) goes to the international chain, where Alex Stewart is already strong in export inspection.
It's not “what breaks it”: it's the dashboard to enter at the right moment. In the lab, the meter drilled signals the sample that reaches the bench 1-3 months later.
Each meter drilled leaves 0.6-1.0 samples that someone prepares and assays 1-3 months later. The announcement of a campaign program —or its expansion, like Lunahuasi to 30,000 m in March 2026— is the earliest signal of laboratory demand, months before the sample reaches the bench.
Operators and juniors (Vicuña, NGEx/Lunahuasi, McEwen, Glencore) — drilling programs per season, by event ↗Companion competitive signal: the capacity installed by the local incumbent (Lenor, ramping up) or the landing of a global (Alex Stewart) marks whether the local analytics gap opens or closes.
Killer #1 has already partly operated: Lenor entered (Apr-2026) and Alex Stewart is evaluating setting up (May-2026). If Alex Stewart executes, a third entrant is left with only niche prep and water. A speed race already started — residual window 2026-2027
With Vicuña/Los Azules in full construction (2027-2029) greenfield meters fall and the mix migrates to geotechnics/infill; the sample peak is 2026-2028; the bridge to the perpetual core (operation labs 2029-2030+) requires surviving the transition
Vicuña FID end-2026; Pachón RIGI not approved (construction 2029). Copper <USD 3.50/lb dries up junior financing first (Aldebaran, AbraSilver). Timing: 2026-2027 (FID) / continuous (price)
Structural: without accreditation + reputation, resource samples never reach an independent local lab (not even Lenor today); it forces the prep or franchise format; accreditation takes 12-24 months
Litigation can halt specific campaigns; symmetric: more water conflict = more demand for water monitoring (the only killer that feeds a segment). Continuous
The figure is built from the bottom up, from three variables you can watch campaign by campaign. The calculable leg is exploration geochemistry: how many meters are drilled, how many samples each meter leaves and how much each one costs to assay.
Exploration geochemistry is the core calculable with a formula. The water/environmental, operation-assay and geotechnics segments (~USD 4-5 M additional) depend on contracts, not on the formula. The top-down contrast —analytics ≈ 2-4% of the province's exploration budget— converges on the same USD 8-16 M band.
The number rests on a few variables. The formula shows how it moves when each one changes; and each variable carries its freshness seal — how often it is worth revisiting. estim
Every figure is checked against its source before we publish it. Here we show what backs it — and where the verified data ends and our estimate begins.
The figure starts from a verifiable physical fact: each meter drilled leaves 0.6-1.0 samples that a laboratory prepares and assays, and the already-announced drilling programs —Vicuña 50,000 m, Lunahuasi 30,000 m— set the volume. On those meters we estimate the assay demand by code price and turnaround time. The total is our own estimate and we say so plainly: the market today is small (~USD 11 M/year) and jumps from 2030, when the process control of the mines in operation is added.
5 sources · 1 official or agencies · 4 of high reliability · each data point links to its source.
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This week’s updates: the map of geochemical laboratory and sample preparation in San Juan and the niches opening up, related courses and new provinces as they launch. Free.