Karim Zariffa
Partner & Principal Consultant
Sustainability Consultants
Practical Sustainability & ESG Advisory
Sustrio helps companies worldwide advance sustainability and ESG performance, manage risk, and identify opportunities that drive business value, while strengthening trust with stakeholders and communities.
Why Sustrio
Integrate Sustainability and ESG into business operations
At Sustrio, we combine strategic sustainability and ESG advisory with boots-on-the-ground experience. We work across sectors and geographies, from complex infrastructure projects to global corporate programs, helping clients integrate sustainability and ESG into core business operations, going beyond just board reports.
We partner with you to design right-sized solutions that align with regulatory expectations, lender requirements, and stakeholder needs — at scale — without unnecessary complexity or cost.
Turn Sustainability into Actionable Strategy
Integrate sustainability and ESG into your operations, prioritizing what drives the most impact for your organization.
Manage Risk and Enhance Value
Understand and manage your environmental, social, operational, legal, and financial risks, and turn them into opportunities for innovation, collaboration, and value creation and sustainment.
Engage with Intention and Transparency
Go beyond consultation to build lasting, trust-based partnerships with your stakeholders and Indigenous communities for mutual success.
Communicate with Confidence and Clarity
Report on what matters and communicate your performance to markets, investors, and stakeholders with credibility.
Hans Luu
Partner & Principal Consultant
Todd Reain
Principal Consultant
Amit Bhargava
Principal Consultant
Kerry Ground
Partner & Principal Consultant
Brian Hattori
Partner & Principal Consultant
Meet the People Behind Sustrio
We believe strong partnerships start with the people behind the work. Get to know our team of diverse consultants and leaders who make Sustrio what it is.
Meet the TeamSustrio Services
Sustainability Services, Assessments, and Reporting
Social Performance and Stakeholder Engagement
Anticipate, manage, and respond to social risks and impacts while strengthening trust with communities and stakeholders.
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Indigenous Relations and Regulatory Strategy
Build respectful, durable relationships with Indigenous communities while navigating complex regulatory environments with confidence.
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Enterprise Risk and Performance
Turn sustainability and ESG risks into clear, decision-ready insights that strengthen performance, resilience, and investor confidence.
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Due Diligence, Assurance, and Reporting
Understand ESG risks, impacts, and value drivers before they affect project performance, reputation, financing, or long-term value.
Explore →Who We Work With
Trusted Across Sectors
Sustrio partners with operators, investors, lenders, and Indigenous organizations across infrastructure, energy, mining, manufacturing, aviation, and finance — from project-level due diligence to enterprise ESG strategy.
Insights
Sustrio's Perspective
Explore insights and thought leadership from Sustrio's team and its partners on sustainability, ESG strategy, and responsible business.
Climate Transition Metals and Responsible Mining
The world’s sustainable development goals hinge on critical minerals: lithium, cobalt, nickel, graphite, and rare earths. These are the building blocks of innovative CO2-neutral technologies like electric vehicles and renewable energy storage driving the wider energy transition. But with soaring demand comes increasing scrutiny. Communities, investors, consumers, and regulators want assurance that these metals are […]
Mining & ESG: Building Long-Term Social License
Mining has always been a high-stakes business. But today, the biggest risks are not only geological, environmental, or technical, they are social. Communities, regulators, and investors all expect more from mining projects than ever before. This shift reflects a fundamental truth: a company’s social license to operate has become just as important as its technical […]
Indigenous Relations: The Business Case for Strategic Partnership
Indigenous engagement in mining, energy, and infrastructure has evolved from a compliance requirement to a fundamental business strategy that determines project viability. Companies with strong Indigenous partnerships achieve 30-50% faster regulatory approvals, (Cim), 70% fewer legal challenges, (Discovery Alert), and command 12-15% premium valuations, (Discovery Alert), while poor engagement can increase project costs by 100-600% […]