Blasting, explosives and blasthole drilling (San Juan)
The rock is blasted for the whole life of the mine — that's why blasting is the most perpetual niche in San Juan's portfolio (Vicuña blasts for +70 years). Today, calibrated for gold, the drill and blast package moves ~USD 25-30 M/year; when the copper porphyries reach steady state, San Juan will blast 450-585 Mt of rock a year that require 100-175 kt of explosive — against the 36,000 t of installed capacity in the province. The explosive itself is a closed oligopoly —Orica, Enaex and Austin Powder cover nearly 100%—, but the jump opens a reachable belt: the blastholes (Hualilán already tendered them apart from the explosive), the dangerous-goods transport and the works of the 2-3 new plants the wave requires.
The TAM is activity for the whole life of the mine, not capturable spoils. The explosive, the initiation and the integral blasting contract —plus the capex and operation of the 2-3 on-site plants the wave requires— are shielded by the ANMaC barrier within the global oligopoly: that is captive. Your real gap is the package's belt —blasthole drilling, class 1 dangerous-goods transport, the plants' civil works and blast monitoring—: the segment addressable by a local contractor.
This niche's driver is provincial: San Juan's Local Mining Development Law reserves part of mining procurement and employment for the local supplier and turns provincial qualification (RE.PRO.MIN) into an advantage for the local blasting-services provider. Each rule opens in the reforms panel on the home page, with its status and primary source.
enablesSan Juan: 80/60 local mining procurementRequires directing 60% of mining procurement to registered San Juan suppliers and reaching 80% local employment —provided they offer competitive terms—: it turns the local blasthole driller, transporter or works contractor into a partner sought by Orica, Enaex and Austin to count toward their quota, and makes the RE.PRO.MIN seal the key to the copper majors' drill and blast belt.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 →Engineering, construction, operation and maintenance of new leach pads (phases 8 and 9) at Veladero Mine, to sustain gold production and exports…
see the project →Reactivation and deepening of the Gualcamayo gold and silver mine (San Juan): the 'Deep Carbonates (DCP)' project extends the mine life toward the…
see the project →Who splits the market, where you get in, what pays and what could break it.
already in
split
Serves Veladero (supply + outsourced transport of nitrate/high explosives) and Gualcamayo; blasting contract at Hualilán (Oct-2025, with Thor on blastholes); domiciled in San Juan capital
The province's only emulsion plant: Campanario 36,000 t/year verif corporate site Jul 19, 2026; 2014 press said ~65,000, <200 km from the 4 mines; integral service since 2007
Operations base INSIDE Veladero verif; its own nitrate from El Galpón, Salta (75,000 t/year); E*STAR detonators
24-month blasthole-drilling contract at Hualilán (Nov-2025); Orica's preferred partner; an unbundled model replicable in the porphyries
Present at the country level (Fundar report); no identified San Juan mining contract
Don't fight for the explosive —the ANMaC authorization, the capital and the safety record shield it within the oligopoly, and the on-site plants are built by Enaex, Orica and Austin with their own capital—. Enter through the package's belt, where the filter is not the explosives license:
Target production blasthole drilling: the reachable large contract without touching explosive. Hualilán already proved the unbundled model —Challenger Gold contracted Thor for 24 months, separate from Orica— and the three porphyries will need 6-12 drill rigs per pit from the 2027-2028 pre-stripping.
Nitrate and class 1 dangerous-goods transport: Orica already outsources the freight to Veladero, and at full wave 100-175 kt/year move from Salta and the on-site plants. It is a fleet financeable against a multi-year contract, today with no identified specialized local operator.
The civil works and erection of the 2-3 on-site emulsion plants plus the magazines (2027-2033, USD 10-30 M per plant), and the vibration and fragmentation monitoring each environmental permit (DIA) requires — contracts that pass down to the local supplier via RE.PRO.MIN.
~70-75% of the TAM (today ~USD 18-22 M; full wave ~USD 145-160 M/year): the explosive, the initiation and the integral 'rock on ground' contract stay with the installed global oligopoly — the ANMaC barrier, capital, safety record, BHP/Lundin/Glencore panels; includes the future on-site plants (the explosives supplier's capex and operation)
Today ~USD 8-12 M; full wave ~USD 50-70 M/year: blasthole drilling (half the SAM), class 1 transport, civil works/erection of plants and magazines, vibration monitoring, maintenance of MMUs/drill rigs. The Local Mining Development Law (80/60 + RE.PRO.MIN, regulations before end-2026) ENLARGES it — with the 'competitive market terms' valve as the real limit
USD 3-10 M/year in 2-3 years: a gold/works blasthole contract (USD 3-8 M/year, the Thor-Hualilán scale), the dedicated explosives transport of a mine (USD 1-3 M/year) or the civil works of the first on-site plant; realistic path = a global's subcontract + RE.PRO.MIN + Achilles
effect
Direct jobs: today ~150-250 positions in gold D&B; at full wave 400-700 [industry assumption] — and unlike the construction-window niches, they are PERPETUAL positions (they last as long as the mines: +70 years for Vicuña), concentrated in Iglesia and Calingasta. Well-paid, portable trades (AOMA agreement): charger/primer with an ANMaC license (a national qualifying credential — whoever has it works in any district in the world), MMU operator, production driller, dangerous-goods driver; learned in 6-18 months. Concrete training gap: San Juan has no school for blasting technicians nor training for the ANMaC license — the new law's 80% local employment requires manufacturing these trades locally (an opportunity for CASEMI/UNSJ/operators). Linkage: Salta→San Juan nitrate freight (grows 4-7×), maintenance of MMUs/drill rigs (Red Balderramo, the national repairer based in San Juan, a natural candidate), civil works of plants and magazines, blasted aggregate quarries for the Northern Corridor. Symmetric risk: extreme client concentration (one contract = one mine) and existential safety — an explosives accident closes the sector for the locals, not just one company.
calculate it
Concentration Maximum and structural oligopoly: 3 globals (Orica, Enaex, Austin Powder) ≈ 100% of the explosive and the blasting service, each with a distinct physical asset (local plant / on-mine base / own nitrate). The barrier is regulatory (ANMaC) + capital + safety record, not commercial. Competition happens contract by contract; the D&B contracts of the 3 porphyries (with their on-site plants) are tendered 2027-2029 and lock in the winner for decades. Hualilán inaugurated the unbundled model (blastholes separated from the explosive) that opens space to non-globals.
The obvious name —“the mine”— is not your client across most of the belt. In San Juan drill and blast the entrant's money comes in through different doors, and two of the three are signed NOT by the operator but by the global explosives supplier:
Hualilán opened the door: Golden Mining S.A. (Challenger Gold) contracted Thor S.A. for 24 months for blastholes, separate from Orica (explosives), mobilized Oct-2025. The three porphyries replicate the model from the 2027-2028 pre-stripping.
Orica already outsources the freight of nitrate and high explosives to Veladero; at full wave 100-175 kt/year move from Salta (El Galpón) and the on-site plants. The door is the global, not the operator.
Enaex built Campanario (USD 3.5 M, 2014); the 2-3 new plants (USD 10-30 M each, 2027-2033) are built by the globals with their own capital and pass foundations, buildings and magazines down to the San Juan contractor via RE.PRO.MIN.
The operator tenders the multi-year integral service; the drill and blast contracts of the 3 porphyries are tendered 2027-2029 and lock in the winner (Orica/Enaex/Austin) for decades. It is the door that is NOT yours — naming it steers you not to touch it.
It's not “what breaks it”: it's the dashboard to enter at the right moment. In blasting, the pre-stripping starts 2-3 years before the first pound of copper.
The pre-stripping moves hundreds of Mt of waste 2-3 years before the first pound of copper, and the blasting and blasthole contract is signed months before the first blast (Hualilán precedent: Orica and Thor mobilized in October 2025). Following those milestones per project tells the satellite when to position.
San Juan mining press — start of pre-stripping and drill & blast award (Josemaría, Los Azules, El Pachón), by event ↗For the macro tempo: the copper price (LME, daily) rules over the pace of the porphyries —copper below USD 3.5/lb re-sequences the wave—. A cycle gauge, not the real-time San Juan figure.
75% of the jump is copper; a delay shifts the TAM (the rock is blasted anyway, later) but doesn't destroy it. The gold core (USD 25-30 M/year) doesn't depend on any FID. Schedule risk concentrated in 2027-2029 (pre-strip).
It only bites before the FID: it postpones pits by years. In production, blasting is opex on a sunk cost of USD 3,000-9,700 M — it's not cut by cycles. Critical window 2026-2029; afterward the niche is shielded for decades (Vicuña +70 years, Pachón 30, Los Azules 21): it is the most perpetual niche in the portfolio.
Guandacol-style stoppages (~1 month with no access to Vicuña in 2026); Jáchal No Se Toca active. Josemaría's DIA approved Mar-2026 mitigates the administrative, not the social. Specific interruptions, not structural.
Electronic initiation/precision blasting reduce the powder factor by 10-20% — gradual erosion offset by the growth of the rock moved. It compresses the margin, it doesn't break the niche.
Low in the service (ANMaC + crews + class 1 logistics make it necessarily local) and in internalization (miners almost never blast on their own: insurance and licenses); medium in works blasting (a Chinese EPC can bring its subcontractor); high only in the raw material (nitrate vs import parity).
The TAM is built from the bottom up from three variables: how much rock is blasted, how much explosive each tonne requires and how much the all-in service costs. The engine is the rock tonnage, which multiplies when the copper porphyries reach steady state.
The TAM rises in dated steps: ~USD 25-30 M/year today (gold), ~USD 60-90 M in 2027-2029 (pre-stripping + works blasting), ~USD 155 M in 2030-2033 (two porphyries at steady state) and ~USD 210 M from 2034 with El Pachón. The top-down cross-check —505 Mt × USD 0.35-0.60/t of full drill and blast— gives USD 175-300 M/year and converges with the per-variable calculation.
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 anchor is the rock-movement capex we opened in the Los Azules feasibility study: the pre-stripping moves hundreds of millions of tonnes of waste years before the first pound of copper, and that is drilling and explosive. Today the market is small (~USD 25-30 M/year) and multiplies toward ~USD 210 M/year at full wave. The total is our own estimate —we say so—: we start from the verified scale of the porphyries and apply standard drilling and blasting consumption, with Hualilán's precedent already under way (drilling and explosives contracts signed in 2025).
9registered sources4official or agencies7of high reliabilityEvery data point on the site links to its source.
Get on board the takeoff
This week’s updates: the map of blasting, explosives and blasthole drilling (San Juan) and the niches opening up, related courses and new provinces as they launch. Free.