Fiscal metering, traceability and royalty auditing at the Salar del Hombre Muerto (Catamarca)
The boundary between Salta and Catamarca at the Salar del Hombre Muerto has been undefined since 1943, and in 2021 the governors solved the problem in the simplest possible way: splitting 50 and 50 the royalties, the provincial taxes and every other levy on whatever is extracted from the disputed strip. Salta approved both agreements by law in January 2026 and Catamarca the Diablillos one in May, and the agreements themselves create bodies: an interprovincial authority of three representatives per province for Sal de Oro and a management committee with a tax subcommittee for Diablillos, with tax officials from both sides seated at the same table. Only one thing is missing, and it is the one that decides everything: the number. Catamarca's royalty law orders collection on the physical volume extracted at the mine mouth and gives the State the power to verify it — but there is no method agreed between the two provinces, no specialized provider in either of them, and the mass the two provinces split each year —royalties, Turnover tax and stamp tax on both sides— is of the same order as all of Catamarca's mining collections.
An event-driven regulatory window: the system is defined when CP2 starts up and the interprovincial authority is constituted; whoever installs the first fiscal point sets the method that gets replicated. And the agreement carries its own switch: it can turn the biprovincial core off overnight.
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What the market is made of
The TAM is activity, not what you will invoice. Here the captive share takes a form seen in no other niche: it is captured by the State itself. The tax subcommittee is made up of the heads of the two provincial tax authorities, and the metering instrument the agreements require will most likely be bought by the contractor inside the plant's capex. Your real gap is what neither of them can do: being the independent third party that measures, seals and certifies a number both provinces accept — plus all the royalty settlement work of the province's other four operations, which does not depend on this agreement.
~USD 1.0 M/year (~55-65% of the TAM) estim: (a) the instrumentation the operator is required to install —flow meters at each well at Sal de Oro and certified measurement of the ore entering the plant at Diablillos— verif, which will most likely be bought and integrated by the plant contractor inside the control capex, not by a third party thesis.
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~USD 0.35-1.4 M/year addressable by a local/domestic entrant (midpoint ~USD 0.8 M/year):(1) the entire auditing, valuation and technical assistance component, because the arbiter can be neither the audited party nor the public auditor who later issues the ex officio assessment;(2) the biprovincial settlement software, where there is no specific local or international offering;(3) traceable calibration and verification, which demands recurring physical presence and today has no provider in the province;(4) the low half of implementation (fiscal-point engineering, sealing and file, separable from the supply of the instrument);(5) ALL of the adjacent layer (royalty returns for the other four operations, pond inventory certification, 3% vs 5% classification), which does not depend on the interprovincial agreement and therefore survives its extinction.
USD 0.15-0.45 M/year recurring for ONE entrant within 2-3 years (midpoint ~USD 0.3 M/year), plus the implementation peak, which is contingent and counted separately.
See how the range is built
Who really pays?
The obvious name —«the tax authority»— is the one that pays latest and worst. In fiscal metering the money flows through three different channels:
Whoever produces in the disputed strip needs a single number that Salta and Catamarca both accept thesis. Catamarca's royalty law puts the risk on them: the base is the physical volume extracted at the mine mouth, settlement is by monthly sworn statement and the fine for not filing it can reach 100% of the royalty verif; on the Salta side the statement is quarterly verif. We found nobody who certifies that number independently today unconf.
Both agreements require the operator to meter: flow meters at every extraction well as a condition of the environmental impact statement at Sal de Oro, and certified metering of the ore entering the plant at Diablillos, with the devices each province requests verif. The instrument will most likely come in with the works and be integrated by the plant contractor inside the control capex thesis: an entrant wanting that slice sells to the EPC, and its differentiator is not the hardware (imported) but the fiscal-point engineering, the traceable sealing and a file admissible before two jurisdictions thesis.
The tax subcommittee of each agreement is made up of two representatives per province, and they are the heads of the tax authorities themselves: Ingresos Públicos y Rentas for Salta, Agencia de Recaudación y Rentas for Catamarca; it can recommend joint regulations to facilitate enforcement verif. That is why it can be done in-house at zero market cost, and it is the door with the most prestige and the least urgency thesis. It opens when the provinces issue those joint regulations.
Which projects move this demand
Second stage of POSCO's Sal de Oro lithium complex in the Salar del Hombre Muerto, on the disputed Salta/Catamarca border strip…
see the project →Gold and silver mining in the puna, on the Salta/Catamarca border area: feasibility development, a 3.15 Mt/yr processing plant and full infrastructure…
see the project →Expansion (Phase 1B) of the historic Fénix lithium-carbonate project in the Salar del Hombre Muerto, operated by Rio Tinto via Minera del Altiplano…
see the project →Lithium brine project in the Salar del Hombre Muerto (western zone), to produce 12,000 t/yr of lithium carbonate equivalent…
see the project →Tres Quebradas stage 2: plant and infrastructure for 40,000 t/year of lithium carbonate via direct extraction (DLE), per art…
see the project →When the window opens
Here the warning is not a price or an investment decision: it is an administrative act, which can open the market or close it for good. These four numbers are the ones that give notice.
See the evidence
See the evidence
See the evidence
See the evidence
Quoted text: 'Once the boundary dispute is resolved by an Act of the National Congress, this agreement shall become void...', and the winning province becomes the sole authority prob.
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The most likely and most immediate killer. The interprovincial tax subcommittee is made up of tax officials from both provinces (three converging sources, Jan 10/12/14, 2026) and art.
See the evidence
The main analytical risk in this niche. 'Metering devices at the plant' did not appear in any of the four press sources opened (El Tribuno, Minería y Desarrollo, Poder Local, Club Minero), but the annex to the Diablillos agreement is published in Salta's Official Gazette and provides for certified metering of the material entering the plant, with technical metering devices that each province may request.
See the evidence
The TAM is a percentage of the fiscal mass: it is LINEAR with price. Q2-2026 spot averaged USD 22,043/t (+13% quarter on quarter) but closed the quarter at USD 19,400/t, and Rio Tinto's realized price in H1-2026 was USD 18,960/t verif.
See the evidence
See the remaining 4 risks
Sal de Oro's Plant II was inaugurated on Oct 6, 2026, with a gradual start-up during 2027 verif Presidencia de la Nación.
See the evidence
Salta publishes Sal de Oro as a Salta project and mentions neither Catamarca nor the royalty split verif Government of Salta, Feb 18, 2026.
See the evidence
The Catamarca Court of Justice lifted 5-2 the injunction over the Río Los Patos sub-basin with continuous monitoring conditions, on a 2021 amparo action by Román Guitián (Atacameños del Altiplano community) with a filing pending before the iachr prob.
See the evidence
Implementation (35-40% of the TAM) is ONE-OFF and concentrated in 2026-2030. The perpetual core —annual calibration, monthly volume reconciliation, base auditing, pond inventory certification— is USD 0.6-2.0 M/year and does not end while the plants operate (mine lives of 25 to 40 years).
See the evidence
The opportunity in depth
The opportunity in depth
Here is a fact that changes the conversation: the province has already ordered instrumentation. Since September 2023, every company with a pilot or producing plant must install flow meters, piezometers and multiparameter meters at each producing well, with cameras and sensors, to audit production, commercialisation and industrialisation, in real time where possible. The deadline was sixty days and it expired. The same resolution empowered three provincial directorates to say which equipment, with which methods and with which procedures — and that implementing rule does not appear in the official mining legislation index.
Whoever extracts from the strip needs a single number that both provinces accept and today has nobody to certify it: monthly reconciliation of the physical volume, defensible valuation of the base, an auditable file in two jurisdictions and a defence against an ex officio assessment —when the tax authority calculates the tax itself because your filing does not add up— where the fine runs from 10% to 30% of what should have been paid, and two to five times the royalty if falsehood in the sworn statement is proven. Ticket USD 40,000-150,000 per client per year, with no equipment.
Integrate the metrological leg via a joint venture — the provincial regime admits it with at least 50% local partners and the precedent is proven in a USD 130 M EPC with a Catamarca firm inside. There you bid the complete package and set up a calibration laboratory in Catamarca serving the whole industry of the province, not just mining: it is the only thing in this niche that remains when the lithium price falls.
When you get paid, and what blocks it
already in
split
It installs and operates the instruments, builds the mass balance and signs the monthly sworn return. It is the AUDITED party: structurally inadmissible as arbiter. Its instrumentation is not 'fiscal metering' until someone independent seals it. It is a client, not a competitor.
The most dangerous competitor is the public budget: the subcommittee is made up of the two provincial tax authorities (three converging sources), and art. 14 of Ley 4757 already gives them the power to verify the physical volume. If they do it in-house, there is no purchase line.
The only real and credible incumbent in sampling, weighing and umpire assaying. OAA accreditations LE187 (Maipú, Mendoza) and LE273 (Palpalá, Jujuy — lithium in brines by ICP-OES), with Catamarca listed as an office WITHOUT any stated specialization or accreditation verif.
See the evidence
They argue the valuation of the base and the defense of deductions, but none has a specialized office in Catamarca or metrological capability: they can fight over the value, not measure the flow. The share is a stated assumption and is not used to size the TAM.
See the remaining 3 players
INTI is the national authority on legal metrology, but which instruments in this chain require type approval or periodic verification under Ley 19.511 (SIMELA) is still unconfirmed against the rule, which is why no claim on that point is used as a lever for this niche unconf. What did stay verified is the geography, and it is the useful half of the datum: across the open registry of inti's 332 laboratories, Catamarca has zero verif. Of the agency's 30 Metrology laboratories, none is in the province and none in the NOA except one: the Industrial Metrology Laboratory of La Banda, Santiago del Estero -- more than 600 km from the Catamarca capital and more than 1,000 from the Salar del Hombre Muerto estim. The rest are concentrated in Santa Fe, Córdoba, Buenos Aires, Chubut and San Luis. The metrological traceability that the fiscal chain needs is not nearby: it is imported from another region, or it is not done.
Zero categories for metrology, fiscal instrumentation, mining tax auditing or traceability software among the 19 categories and 123 memberships verif. The closest: professional services 7, electrical services 3, satellite monitoring 2, environmental services 4, insurance and guarantees 1. And only 12 suppliers in Antofagasta de la Sierra, the department of the salar (2,022 inhabitants).
Who occupies the slot today, AND from where. An accredited calibration lab from Buenos Aires appears in the supplier registry of CAMYEN, the Catamarca State mining company, and is the only accredited calibration lab we could document serving the province. It is NOT from Catamarca and cannot be for Re.P.E.M. purposes: the OAA registry domiciles it in Tigre, province of Buenos Aires, and its accredited scope is, verbatim, "Calibration of torque tools type I and type II" -- torque wrenches, not flow or density or brine mass verif. It serves to size the gap, not to fill it. THE count that matters, over the full OAA registry: there are 29 accredited calibration laboratories in force across the whole of Argentina and they live in three provinces -- Buenos Aires 21, Santa Fe 7, Mendoza 1. Zero in Catamarca, zero in the whole NOA verif. Added to inti's 0 laboratories in the province, that is two independent national registries saying the same thing: the metrological traceability chain that a fiscal measurement needs in order to be enforceable does not have a single accredited link within ~1,000 km of the salar estim. That is the gap, and it is now proven by registry rather than assumed.
The jobs it createsWith the same rigour as the risk: this is 12-20 jobs, not 200 — it is the smallest niche in employment of the whole Catamarca pass and anyone selling it as a mass job creator is lying. What it does have is the best qualification-to-capital ratio in the chain and a peculiarity no other line on the salar has: IT IS city employment, NOT camp employment. Sal de Vida's primary source documents a regime of '5 days on / 2 off, 40 hours a week, applicable solely to the staff of the Catamarca city office', against the site's 14x14 of 9.5 hours at 4,100 masl verif: an office with campaigns, with no uprooting and no 7x7 rotation, in a province where mining pays 2.8x the private-sector average (ARS 4,496,304 vs ARS 1,612,706 as a 12-month average, OEDE-SIPA) verif.Trades with a concrete, short route: instrumentation and control technician (verification of electromagnetic and Coriolis flow meters, 4-20 mA loops, weighbridge verification with standard weights, instrument sealing — months of training on an electromechanical technician base); metrology technician (standards, uncertainty calculation, managing an ISO/IEC 17025 scope: it is the trade that does not exist today in the province and the one that enables everything else); lot sampler/inspector with chain of custody (the only role requiring physical presence at the salar's fiscal point: 2-6 jobs that CAN be from Antofagasta de la Sierra, where there are 2,022 inhabitants and there were 12 registered suppliers in May 2025 — it is the part of this niche that reaches the puna); laboratory analyst with ICP-OES and atomic absorption, with an existing talent pool (UNCA produces chemists and chemical engineers, and Minera Cordillera Litio / Arex Mining set up a laboratory in the province where, counting the administrative area, 40 people work; 89% of the company's staff are from Catamarca and the laboratory's two areas are run by local chemical engineers prob — proof that the team can be built here); data analyst/developer for the traceability system; and an accountant or tax lawyer specialized in mining (two profiles imported from Buenos Aires today).The linkage that remains: an accredited calibration laboratory in Catamarca serves more than lithium — it serves every commercial scale, fuel dispenser, weighbridge and meter in a province of 429,562 inhabitants; it is the only piece that, once installed, leaves permanent capability independent of the carbonate price. And the written standard (the biprovincial fiscal metering protocol) is a public asset: if it is written well, every future supplier works better.The three limits, stated in full: (1) these are professional, urban jobs that do NOT reach the resident of Antofagasta de la Sierra except through the 2-6 sampling roles; (2) all the employment depends on the function being bought rather than done in-house, and that is not decided; (3) if Congress settles the boundary, half of these jobs disappear along with the agreement.
calculate it
The number is our own estimate. The calculation, step by step, is below.
The full calculation, step by step
Concentration The market is not concentrated: IT IS NOT bought. There is no dominant supplier to displace; there is a function executed internally, with no standard and at zero market cost. A single international laboratory monopolizes the credible technical leg —umpire work and assaying, with OAA accreditations in Mendoza and Jujuy and nothing stated in Catamarca—, no player covers the three competencies the service demands at once (independence admissible before two tax authorities + accredited traceability + operation at 4,000 masl), and the natural buyer can self-supply with public staff. Across 229 active suppliers in the Re.P.E.M. there is not a single local competitor in this line. The competitive risk is not an incumbent: it is the status quo.
The rule that moves it
The driver of this niche is a double act of State: Catamarca's Mining Royalties Ley 4757 sets the base at the physical volume extracted at the mine mouth, requires declaring it every month and empowers the tax authority to verify it with a fine of up to 100%; and the Salta-Catamarca agreement over the disputed Hombre Muerto strip duplicates that control, because the same volume and the same deductions now have to be accepted by two tax administrations that share no standard.
See the underlying reading
The underlying policy that opens up this demand. It is the same inference declared by the rules and the program pillars pushing in this direction.
federal-provincial tensionSee the full legal grounds
See the full legal grounds
Where the number comes from
~USD 1.8 M/year at the midpoint on the Catamarca side; the band is USD 0.8-3.0 M/year, and today —with Diablillos still without a plant— USD 0.65-2.55 M/year. Counting both provinces, the complete biprovincial business is USD 1.0-3.9 M/year
See the calculation, the variables and how it was validated
The TAM is built from three variables you can watch: how many fiscal points are covered, what an integrated retainer per plant is worth and how much rent is at stake (which is the ceiling: nobody spends more on measuring than what is being split). Change one and the number is recalculated.
A robustness check by three routes —and our own audit says that none of the three validates the bottom-up, so the number rests on the method and not on them—: (a) by risk, an assurance program costs 2-8% of the rent it protects → USD 0.3-2.8 M/year for the core, and the bottom-up gives 0.5-2.0: it falls inside, but the band is 9.3× as wide and any result would fall inside; (b) top-down, 5-6 plants × USD 0.25-0.70 M of retainer = USD 1.3-4.2 M/year, which falls ABOVE the published range; (c) by headcount, the midpoint equals ~13-18 full-time equivalent professionals for the whole province, but the price per professional is an input of the calculation itself, so dividing and getting the head-count back is an identity, not a verification. What does stand: this is a niche of 12-20 qualified jobs, not of a hundred million.
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
The anchor is not a projection: it is the law. We opened the text in force of Catamarca's Mining Royalties ley 4757 and read the six articles that create the obligation to measure: the base is the physical volume extracted at the mine mouth (art. 5), settlement is by monthly sworn return (art. 7), the law allows an automatic fine of up to 100% of the royalty (art. 11) and its implementing decree graduates it: 10% to 30% for failing to file, filing incomplete or filing late, and two to five times the royalty if falsehood in the sworn statement is proven, transport requires a Mineral Transit Permit (art. 12) and the authority may demand the documentation for the verification of the physical volume extracted (art. 14). We then measured the mass at stake with ARCAT's official collection series and with the carbonate price published by the largest operator. And we say what we could not confirm: the text of the agreements between the two provinces is not published —the law approving them is, the annex is not—, so the phrase going around about «metering devices at the plant» is one we did not find in any of the four sources we opened. The annual total is our own estimate: we multiply covered plants by service price and cross-check it against the size of the rent it protects.
Coverage: the register of accredited bodies of the Organismo Argentino de Acreditación, the country's only accreditation body (341 accreditations, counted one by one: none domiciled in Catamarca and a single one in Salta), and INTI's list of laboratories by province (332 records) · Sep 14, 2026 · not reviewed: the national register of manufacturers and repairers of measuring instruments was not opened, and it would be the exact universe for the calibration leg; and the international supply of royalty-settlement software cannot be swept from here
How to cite this figure: Despegue (2026). Fiscal metering, traceability and royalty auditing at the Salar del Hombre Muerto (Catamarca) · Catamarca. despegueargentina.com/en/catamarca/medicion-fiscal-biprovincial-hombre-muerto · terms of use
Neighbouring markets2 markets in the same group, from USD 8 to USD 95 M a year
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