A little more clarity from AI:
Municipal Authority Over Auryn’s Mining Camp: What Can Curacaví Actually Do?
The Short Answer
The Municipalidad of Curacaví has real but very limited authority here, and it is far weaker than its declaration makes it sound. The mayor can create serious nuisance and political pressure, but has essentially no direct legal power to stop actual mining, processing, or tailings operations. Here’s why.
1. The Building Permit Question — The Mayor’s Strongest (But Still Weak) Lever
Chile’s Ley General de Urbanismo y Construcciones (LGUC), Article 116 (DFL 458) establishes the general rule that construction of buildings and urban works of any nature — urban or rural — requires a permit from the municipal Dirección de Obras Municipales (DOM).
Under Article 116, the construction, reconstruction, repair, alteration, expansion, and demolition of buildings and urbanization works of any nature, whether urban or rural, require a permit from the Dirección de Obras Municipales at the request of the owner. Leyes-CL
This is the legal hook the mayor is using. If the mining camp’s habitation buildings, administrative offices, and warehouses were built without permits, the DOM has a legitimate basis to issue a paralización de obras (works stoppage) or denuncia (formal complaint) against the unpermitted structures.
However — and this is the critical limitation — mining infrastructure works are explicitly outside this framework.
Hydraulic, electrical, and mining infrastructure works are not expressly exempted from Article 116 because they are naturally not covered by it at all — they do not have the character of “buildings” or “urbanization works.” Chilean government circulars (ORD CIRCULAR Nº 815 of 1996 and DDU Nº 218 of 2009) from the Ministry of Housing and Urban Development confirm that such works do not require intervention by the Dirección de Obras Municipales. The Contraloría General de la República has issued multiple opinions confirming that this class of infrastructure requires no municipal permit. Cde
This means the flotation plant as a mining process installation, the tailings storage facility (TSF), and the wellfield infrastructure are almost certainly outside the DOM’s permitting jurisdiction entirely. The municipality’s declaration may cover dormitory/accommodation buildings, the cafeteria, the administrative offices, and similar habitation structures within the camp — but even that claim will be contested.
2. Can the Municipality Stop Mining, Flotation, or Tailings Operations?
No. This is the clearest part of the analysis.
Regional governments, provinces, municipalities, and other administrative entities have little or no authority over the mining sector. Municipalities are restricted mostly to granting extraction permits over surface clays, sands, rocks, and other materials directly used for construction, which are located within their territory. Lexology
The Chilean Constitution vests ownership of all mineral deposits in the State, and the concession system operates entirely outside municipal control. Under the Organic Constitutional Law on Mining Concessions, exploitation concessions are real rights distinct from and independent of the surface real estate (Article 2), with no depth limit (Article 3), and owners of a concession are the only ones entitled to sample and dig in their concession. Wikipedia
The main permit required for mining operations is the environmental permit known as the Resolución de Calificación Ambiental (RCA), granted by the environmental authority after an environmental assessment process in which all public entities with environmental competence participate in a centralized manner. Municipal participation occurs within that process — it does not stand outside it as an independent veto. Lexology
So: once Auryn holds a valid RCA and SERNAGEOMIN approvals, no mayor can shut down the pit, the flotation plant, or the tailings facility through a building permit declaration.
3. What Actual Enforcement Tools Does the Municipality Have?
The municipality’s tools are narrow and mostly structural/civil:
What it CAN do:
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Issue a formal paralización order for the specific unpermitted buildings (habitación, offices) under the LGUC, requiring the company to either demolish them or regularize through the DOM permit process.
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Refer the matter to the Contraloría Regional or the judiciary if the company ignores the order.
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Impose minor fines under the LGUC for unpermitted construction (these are generally small relative to a mining operation’s scale).
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Deny future municipal licenses or patentes for commercial activities based in those structures.
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Generate political and media pressure that may complicate social license.
What it CANNOT do:
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Order cessation of mining, blasting, or ore extraction — SERNAGEOMIN jurisdiction.
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Shut down the flotation plant — subject to the RCA and SERNAGEOMIN oversight.
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Order closure of the tailings facility — governed by SERNAGEOMIN under DS 132 (Reglamento de Seguridad Minera) and the RCA.
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Interfere with the mining concession — a court-granted property right.
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Block roads on public rights-of-way to prevent access (Carabineros/MOP jurisdiction).
4. Auryn’s Recourse to Reoccupy and Restart Operations
Assuming Auryn holds a valid RCA, SERNAGEOMIN approvals, and mining concessions, their path is well-established and legally strong:
Step 1 — Challenge the municipality’s declaration directly. File a recurso de ilegalidad municipal before the Corte de Apelaciones of Santiago (or the regional court), which under Article 151 of the Ley Orgánica Constitucional de Municipalidades (Ley 18.695) allows any person harmed by an illegal or arbitrary municipal act to seek annulment and damages. Given the doctrinal clarity that mining infrastructure doesn’t require DOM permits, this is a strong claim.
Step 2 — Engage SERNAGEOMIN. SERNAGEOMIN (not the municipality) is the competent authority over mine safety and operations. Auryn can request SERNAGEOMIN formally confirm its jurisdiction and, if needed, issue a statement that the mining operations are authorized and within federal regulatory control — effectively preempting the municipality.
Step 3 — Regularize what genuinely requires permits. If dormitory or administrative buildings were in fact built without municipal permits, the pragmatic path is to simultaneously fight the illegality claim while filing for regularización of those structures under the LGUC. This neutralizes the municipality’s strongest legitimate argument and restores access to the camp buildings.
Step 4 — Seek precautionary relief (medida precautoria). In parallel with the recurso de ilegalidad, Auryn can seek an injunction from the civil courts protecting their concession rights and enjoining any municipal interference with operations covered by national permits.
5. The Ferry Workaround Question
Yes, workers can legally be transported from a nearby town (e.g., Curacaví town center or Lampa) to the concession area by vehicle on public roads. A mayor’s declaration about unpermitted camp buildings does not create a legal authority to blockade public roads or prevent workers from entering the concession area on foot or by vehicle. Carabineros would not enforce a road blockade absent a court order, and no court would issue one based solely on a building permit dispute.
That said, this is operationally costly and creates friction — particularly during the protest environment. If activists (rather than authorities) physically block the access road, the company’s remedy is to request police intervention, which the current political climate around environmental protests in Chile makes complicated in practice.
The more durable solution is the legal route in steps 1-3, which can realistically produce a result within weeks to a few months given the clarity of Chilean law on municipal versus national mining jurisdiction.
Bottom Line
The mayor’s declaration is primarily a political act dressed in legal clothing. It has real teeth only over the camp’s habitation structures, and even that claim is contestable. It has zero legal authority over the mine pit, flotation plant, or tailings facility. With valid federal permits in hand, Auryn’s legal position is strong, and Chilean courts have a well-established doctrinal basis — confirmed by the Contraloría General and MINVU circulars — for setting aside this kind of municipal overreach into nationally-regulated mining operations.
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