Mining operations can affect biodiversity through habitat disturbance, water abstraction, water contamination and land transformation. Mine closure and rehabilitation are among the most significant long-term obligations of the mining life cycle, requiring financial assurance (rehabilitation bonds) and multi-decade monitoring. This directory covers the principal international frameworks, standards and NGOs that govern biodiversity, water stewardship and mine closure for the mining industry.
Alphabetical.
The International Council on Mining and Metals (ICMM)'s Mining Principles commit member companies under Principle 7: Conservation of Biodiversity to two specific Performance Expectations. 7.1 requires members to neither explore nor develop new mines in UNESCO World Heritage Sites and to respect all legally designated protected areas, while 7.2 requires application of the mitigation hierarchy — avoid, minimise, restore, offset — to achieve a minimum of no net loss (NNL) or net gain of biodiversity by the completion of mine closure (ICMM, Principle 07: Conservation of Biodiversity). These commitments were developed with extensive input from NGOs, international organisations, and academics, and establish baseline performance expectations that ICMM audits against as part of member companies' Mining Principles assurance process. Because the no-net-loss ambition is explicitly tied to the closure stage of a mine's life, it functionally links ICMM's biodiversity principle directly to closure planning — a rehabilitated or offset landscape only counts once closure is substantially achieved, not merely planned.
The Kunming-Montreal Global Biodiversity Framework (KM-GBF), adopted at COP15 and setting 23 action-oriented targets for the decade to 2030, includes Target 15, which for the first time within a Convention on Biological Diversity strategic plan explicitly requires governments to take “legal, administrative or policy measures” ensuring that large and transnational companies and financial institutions regularly monitor, assess, and transparently disclose their biodiversity risks, dependencies, and impacts across operations, supply chains, and portfolios (Convention on Biological Diversity, COP-15 Decision 15/4 — Kunming-Montreal Global Biodiversity Framework). The Secretariat of the CBD frames Target 15 as the Framework's provision most directly linked to business, built on three pillars: mandatory monitoring and disclosure, consumer information to support sustainable consumption, and reporting on compliance with access and benefit-sharing regulations (Secretariat of the Convention on Biological Diversity, Kunming-Montreal Global Biodiversity Framework and Business). Analysis from the Capitals Coalition finds that existing corporate disclosure frameworks — including the Taskforce on Nature-related Financial Disclosures (TNFD) and GRI Standard 304 (renumbered GRI 15 in some mappings) — already show meaningful thematic alignment with Target 15, positioning mining-sector biodiversity reporting to converge on TNFD-style metrics as national governments translate Target 15 into domestic law through updated National Biodiversity Strategies and Action Plans (NBSAPs) (Capitals Coalition, How Can Corporate Biodiversity Assessment and Reporting Align With the GBF?).
Beyond Target 15, the KM-GBF's headline “30x30” commitment — Target 3's goal of conserving at least 30% of terrestrial, inland water, and coastal/marine areas by 2030 — sits in direct tension with mineral exploration and development, since Target 1 separately calls for bringing the loss of areas of high biodiversity importance “close to zero by 2030” through participatory, biodiversity-inclusive spatial planning (Convention on Biological Diversity, COP-15 Decision 15/4, Target 1 and Target 3). For mining specifically, this creates a widening “no-go zone” map as national governments translate 30x30 into protected-area designations, layering onto ICMM's existing self-imposed World Heritage Site exclusion under Principle 7.1 and increasing the practical overlap-risk assessment burden on exploration-stage projects operating near ecologically sensitive land before any mine design work begins.
The Global Industry Standard on Tailings Management (GISTM), launched August 2020 by UNEP, the Principles for Responsible Investment (PRI), and ICMM, embeds water governance directly into its 15 principles and 77 requirements rather than treating water as a separate topic (Global Tailings Review, Global Industry Standard on Tailings Management). Technical guidance developed around the standard emphasizes better measurement and management of tailings storage facility (TSF) water balance as a leading indicator of dam stability risk, since uncontrolled water ingress or poor water-balance modelling is a recurring contributing factor in tailings failures (SRK Consulting, Global Standard Prioritises Better Measuring, Managing of TSF Water). For the passive, post-closure phase specifically, GISTM stipulates that tailings storage facilities must adhere to the most stringent design criteria available — an annual exceedance probability of 1-in-10,000 — regardless of the facility's operational consequence classification, reflecting the reality that a failure decades after closure carries the same downstream human and environmental risk as one during active operation (Australian Centre for Geomechanics, Retrospectively Applying the Global Industry Standard on Tailings Management). Closure design under GISTM must be developed through a multi-criteria alternatives analysis weighing environmental, social, and safety factors to reduce residual risk to “as low as reasonably practicable” (ALARP), formally reviewed by a tailings review board or senior independent technical reviewer, and approved by the site's Accountable Executive before implementation.
The Initiative for Responsible Mining Assurance (IRMA) Standard, first released in 2018 following its founding in 2006, devotes Chapter 2.6, Planning and Financing Reclamation and Closure, explicitly “to protect long-term environmental and social values and ensure that the costs of site reclamation and closure are not borne by affected communities or the wider public” (IRMA, Standard for Responsible Mining — Guidance Document). The chapter requires that stakeholders be able to comment on a mine's reclamation and closure plan and its financial surety, with additional consultation triggered where long-term water treatment obligations may arise post-closure — directly tying water governance into the closure-financing chapter rather than addressing water only as an operational-phase environmental topic (IRMA, Standard for Responsible Mining — Guidance Document). IRMA assigns sites one of four achievement levels — IRMA Transparency (independently audited, results published), IRMA 50, IRMA 75, and IRMA 100 — based on the percentage of requirements met across the Standard's four principles, with IRMA 100 requiring full compliance across every chapter including closure financing (Tallgrass Institute, Indigenous Peoples and the Initiative for Responsible Mining Assurance). A 2023 draft revision toward IRMA Standard 2.0 proposes consolidating the reclamation and closure chapter from 28 requirements in the 2018 Standard down to 13, removing duplicative post-closure financial-surety language while preserving the core financial-assurance requirement that operators secure funding mechanisms guaranteeing rehabilitation, closure, and post-closure management plans will actually be paid for and carried out (IRMA, Draft Standard 2.0: Planning and Financing Reclamation and Closure, Live Consultation).
Regional GISTM conformance deadlines required all ICMM member companies to bring “extreme- and very high-consequence” tailings facilities into conformance by August 2023, with all other facilities required to conform by August 2025 (GISTM Blog, Understanding the Global Industry Standard on Tailings Management — Complete Overview). In practice, Chilean operators including BHP, Teck, and Antofagasta report high alignment with GISTM, integrating seismic-resistant design codes and filtered (dry-stack) tailings systems suited to the country's high seismic-hazard profile, while in Peru, companies such as Gold Fields and Antamina publish facility-level disclosure reports demonstrating conformance and documenting community engagement at high-altitude tailings sites (GISTM Blog, Understanding GISTM). Independent third-party conformance verification is now a standard annual deliverable: South Africa's Sibanye-Stillwater, for example, published a formal limited-assurance conformance verification report against all 15 GISTM principles for the 2023 reporting year, illustrating how the standard's disclosure requirements have moved from self-reported checklists to externally assured statements comparable to financial audits (Sibanye-Stillwater, Independent GISTM Conformance Verification 2023).
According to the International Institute for Sustainable Development's Intergovernmental Forum on Mining (IGF), Chile and Peru are, to date, the only Latin American countries with comprehensive national mine closure legislation requiring mining operations to provide financial assurance covering closure liabilities — Chile under its Mine Closure Law (Ley de Cierre de Faenas e Instalaciones Mineras) and Peru under its own national mine closure regulatory framework (IISD, IGF Case Study: Mine Closure Policies in South America). This regional leadership stands in contrast to jurisdictions such as Argentina, where the IGF and other legal commentators note that only the Province of San Luis has enacted binding financial-guarantee legislation — a one-time 7% investment-value payment into an Environmental Guaranty Fund under Provincial Law No. IX-0634-2008 — leaving most Argentine mining jurisdictions without a mandatory closure-bond mechanism at all (Marval O'Farrell Mairal, Closure of Mines: Guarantees). Both Chile and Peru's systems require site-specific closure plans to include upfront cost estimation and a corresponding financial-assurance instrument, though the precise bond-calculation formula and permitted guarantee instruments (cash deposit, bank letter of credit, or insurance bond) are set at the implementing-regulation level rather than in the primary closure statute itself.
Australian mine-closure financial assurance is regulated at the state level with materially different accepted instruments. Queensland's Mineral and Energy Resources (Financial Provisioning) Act 2018 replaced the prior bond system with a pooled Financial Provisioning Scheme (FPS) and introduced a mandatory Progressive Rehabilitation and Closure Plan (PRC plan) requirement for all site-specific environmental authorities relating to mining activities, effective from 1 November 2019 (Queensland Government, Financial Assurance, Provisioning and Rehabilitation for Resource Activities). Victoria currently accepts only an unconditional bank guarantee as its sole financial-assurance mechanism, with rehabilitation bonds set at 100% of the estimated rehabilitation cost, standard exploration-licence bonds fixed at AUD 10,000, and cash bonds permitted only up to AUD 50,000 (Resources Victoria, Rehabilitation Bonds — Minerals Exploration, Mines and Quarries). Western Australia continues to rely primarily on surety (performance) bonds, while New South Wales permits bank guarantees, insurance bonds, cash, or combinations thereof, and South Australia accepts either a bank guarantee or a rehabilitation bond (IISD, Global Review: Financial Assurance Governance for the Post-Mining Transition). Queensland separately layered on “chain of responsibility” legislation via the Environmental Protection (Chain of Responsibility) Act 2016 (Qld), extending rehabilitation liability to any individual or related entity connected to the company that caused the environmental degradation — a mechanism designed specifically to prevent shell-company insolvency from letting mining rehabilitation obligations go unfunded (Australasian Legal Information Institute, Examination of Mining Site Rehabilitation).
The core policy tension across all three jurisdictions is whether bonds are sized to actual full closure cost or merely to a discounted estimate that leaves a funding gap if the operator defaults. Victoria's rule that a rehabilitation bond must reflect 100 per cent of the estimated rehabilitation cost, with the state explicitly empowered to complete the rehabilitation itself using bond proceeds if an operator cannot meet its obligations, represents one of the more conservative full-cost models (Resources Victoria, Rehabilitation Bonds). This full-cost design logic mirrors IRMA's Chapter 2.6 principle that closure costs must not fall on communities or the public purse, and increasingly informs how GISTM-conforming operators size their own post-closure water-treatment financial-assurance provisions where perpetual or long-duration water treatment is anticipated after a tailings facility's active life ends.