What We Do | OneWorld Sustainability Consult

ESG Advisory & Sustainability Services

OneWorld Sustainability Consult Limited provides integrated environmental, social, and governance advisory services to support responsible project development, operational performance, and long-term value creation.

Our services are delivered across the full project and asset lifecycle and aligned with international standards, regulatory frameworks, and lender requirements.

Environmental Performance

Ensuring regulatory compliance, environmental protection, and sustainable resource management.

Environmental Impact Assessment & Permitting

We have a proven track record in designing comprehensive permitting strategies to improve permitting timelines, and in implementing environmental baselines and Environmental Impact Assessments (EIAs) across multiple sectors.

Mine Asset Transition

We prepare mine closure assessments, closure completion criteria assessments, rehabilitation and decommissioning plans, and evaluate life-of-mine and post-closure liabilities, including closure cost estimation.

Circular Economy & Waste Management

OneWorld provides specialist advice on mine waste assessment and management, including waste management design, technology selection, hazardous materials auditing, and regulatory compliance support for industry and regulators.

Environmental Management & Auditing

We conduct environmental management systems auditing (ISO 14001:2015), internal environmental audits, compliance audits, waste audits, due diligence audits, and greenhouse gas and energy audits.

Energy & Climate

Our in-house team conducts climate risk assessments for major infrastructure projects and delivers comprehensive carbon accounting across Scope 1, 2, and 3 emissions. We also provide specialist assessment and management services for renewable energy projects.

Biodiversity & Nature

We identify ecosystem risks and design biodiversity action plans tailored to project needs. Our specialists conduct ecosystem services assessments, land use and vegetation mapping, and habitat assessments.

Hydrological & Acid Base Accounting

We provide expertise in hydrological assessment and flood modelling, groundwater modelling, and geochemical attenuation studies, including evaluation of acid rock drainage, metal mobility, and contaminant fate and transport.

Environmental Stewardship

Working with a broad network of industry experts, we design and implement mine material storage facilities, water stewardship strategies, and soil, sediment, surface water, and groundwater sampling and analysis programs.

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Governance & ESG

Strengthening governance systems, ESG performance, and accountability.

Sustainability Reporting & Communication

We support organisations to prepare sustainability reports aligned with Global Reporting Initiative (GRI) standards, ESG disclosure requirements, and corporate communication strategies.

ESG Benchmarking

We conduct independent benchmarking of sustainability performance and compliance against IFC Performance Standards, Equator Principles, the Global Industry Standard on Tailings Management, Copper Mark, and other international frameworks.

Exploration ESG Frameworks

We develop context-specific ESG tools for early-stage and exploration projects to support environmental stewardship, social acceptance, and regulatory readiness.

Materiality & Risk Assessment

We assist organisations to identify and prioritise material environmental, social, and governance risks affecting business performance and stakeholder outcomes.

ESG Due Diligence & Auditing

We conduct ESG due diligence, compliance audits, and inspections to support continuous improvement, risk reduction, and accountability.

ESG Training & Resourcing

We design and deliver ESG training and resourcing support to help organisations meet local content requirements, strengthen internal capacity, and integrate inclusion, job creation, and supplier development into project delivery.

Sustainability Strategy & Health & Safety

We develop sustainability and ESG strategies aligned with core business objectives, while supporting the institutionalisation of health and safety practices aimed at zero harm and workforce and community wellbeing.

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Social Performance

Managing social risk, protecting rights, and strengthening community relationships.

Land Access & Compensation

Our specialist teams work with clients and communities to ensure fair and equitable land access and compensation processes through meaningful consultation and engagement.

Involuntary Resettlement

We have extensive experience implementing involuntary resettlement programs in line with IFC Performance Standard 5, including livelihood restoration planning and implementation.

Human Rights & Vulnerability Assessments

We conduct human rights due diligence and develop tailored human rights frameworks to mitigate project risks, with specific attention to vulnerable and at-risk groups.

Grievance Mechanisms

We support the design and implementation of transparent, community-trusted grievance mechanisms that enable timely, fair, and effective resolution of complaints.

Cultural Heritage Management

Our cultural heritage management processes align with international best practice, supporting the protection of cultural heritage while enabling responsible development.

Artisanal and Small-Scale Mining (ASM)

We develop adaptive strategies to manage ASM-related risks, supporting project continuity, regulatory compliance, and stakeholder harmony.

Stakeholder Engagement & Relationship Management

Our team has successfully engaged local, regional, and national stakeholders to build trust, manage expectations, and secure broad-based project support.

Community Investment Programs

We assist organisations to strengthen social licence and long-term business sustainability through the design and implementation of social responsibility programs, including local employment, local procurement, and benefit-sharing initiatives.

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Tailings Services

We provide integrated tailings consulting services covering the full lifecycle of a Tailings Storage Facility (TSF), from site selection and design through to operation, monitoring, and closure. Our approach combines practical engineering, risk management, and environmental stewardship to deliver safe, efficient, and compliant tailings solutions aligned with international standards.

ESG Advisory & Sustainability Services

Environmental Performance

Environmental Impact Assessment & Permitting

Mine Asset Transition

Circular Economy & Waste Management

Environmental Management & Auditing

Energy & Climate

Biodiversity & Nature

Hydrological & Acid Base Accounting

Environmental Stewardship

Governance & ESG

Sustainability Reporting & Communication

ESG Benchmarking

Exploration ESG Frameworks

Materiality & Risk Assessment

ESG Due Diligence & Auditing

ESG Training & Resourcing

Sustainability Strategy & Health & Safety

Social Performance

Land Access & Compensation

Involuntary Resettlement

Human Rights & Vulnerability Assessments

Grievance Mechanisms

Cultural Heritage Management

Artisanal and Small-Scale Mining (ASM)

Stakeholder Engagement & Relationship Management

Community Investment Programs

Tailings Services

TSF design and engineering (concept to detailed design)

Site selection and geotechnical investigations

Tailings deposition planning and modelling

Monitoring systems and instrumentation

Risk assessments (FMEA, DBA) and dam safety reviews

Seismic and hazard studies (including PSHA)

Independent design review and GISTM compliance

Environmental and water management services

Construction support and quality assurance

Operations support and optimisation

Closure and rehabilitation planning