About Sustrio

Where Sustainability Meets Strategy

Practical Sustainability & ESG Advisory — built on experience, driven by impact.

Two workers in coveralls at an industrial plant — representing the industries Sustrio works with.

What Sets Sustrio Apart

Practical Sustainability & ESG Advisory

Sustrio helps companies move from good intentions to measurable results. We combine global standards with local insight to advance sustainability and ESG performance, reduce risk, and identify opportunities that create business value and lasting trust.

Built on Experience, Driven by Impact

Our team brings decades of combined in-house and consulting experience in regulatory approvals, ESG strategy development and integration, sustainability reporting, Indigenous and stakeholder engagement, and environmental and social risk and impact management. We don't just write reports — we work alongside our clients to deliver outcomes that hold up to scrutiny from investors, regulators, and communities.

Sustrio Is Your Trusted Partner

Our partnering approach is built on one core principle: delivering solutions that work. We work closely with our clients to understand their unique challenges and goals, crafting strategies that are as distinctive as their business. Our focus is not just on ideas, but on results — ensuring that every solution we design is actionable, effective, and drives real impact.

Global Expertise, Local Understanding

From complex infrastructure projects in remote regions to global corporate programs, Sustrio combines global frameworks (IFC, EP4, CSRD, TCFD) with deep local knowledge — particularly across Canada, the Americas, and emerging markets where the social and environmental stakes are highest.

Our Mission

We help companies turn sustainability and ESG into competitive advantage — not compliance overhead.

We work with companies that want their sustainability and ESG investments to translate into measurable business outcomes: secured financing, regulatory approvals, durable community partnerships, and resilient operations. Our work spans strategy, due diligence, reporting, Indigenous and stakeholder engagement, and on-the-ground program execution.

The Sustrio Leadership Team

Senior advisors with decades of combined experience across consulting, industry, government, and Indigenous engagement.

Brian Hattori headshot

Brian Hattori

Partner & Principal Consultant

Brian Hattori

Partner & Principal Consultant

Brian is a Partner & Principal Consultant and brings two decades of experience advising and executing projects across the globe. His work spans the United States, Canada, Australia, and the Middle East, with a focus on the Nuclear & Environmental, Mining, Infrastructure, and Energy sectors. Brian is a trusted advisor helping clients bridge strategy and execution to unlock operational efficiencies and integrate sustainability. He uses a data-driven, risk-based approach to help organizations operationalize Sustainability and ESG, improve performance, and mitigate non-technical risks. His diverse background and cross-functional experience provide a business perspective used to craft tailored sustainability strategies that align with stakeholder expectations and drive long-term value creation.

He is certified to lead and perform assessments to the Equitable Origin, TSM and Copper Mark, and ISO 14001 standards. Brian holds a Master of Sustainability Leadership, enhancing his core competencies in performance management, strategic planning, materiality and risk assessments, reporting, and diligence.

Hans Luu headshot

Hans Luu

Partner & Principal Consultant

Hans Luu

Partner & Principal Consultant

Hans is a Partner & Principal Consultant, recognized as a strategic collaborator with over 20 years of practical expertise in sustainability leadership and business advisory. Hans has deep expertise and content knowledge in ESG/sustainability strategy development and implementation, risk management, management systems, climate change strategy and policy, environmental reporting, and non-financial assurance, combined with training and education in business and environmental science.

In his professional career, Hans has held various roles in global professional services firms, public companies, and higher education, both as a leader and team member. He holds a Bachelor of Arts in Literature, a Bachelor of Commerce, a Master of Environmental Design from the University of Calgary. He is currently studying for the SASB Fundamentals in Sustainability Accounting Level I designation.

Karim Zariffa headshot

Karim Zariffa

Partner & Principal Consultant

Karim Zariffa

Partner & Principal Consultant

Karim is a Partner & Principal Consultant at Sustrio with more than 20 years of experience in applied sustainability and business leadership. He has worked extensively in ESG and sustainability reporting, regulatory approvals, government relations, and stakeholder and Indigenous engagement, with a reputation for building trust and navigating complex challenges with a pragmatic approach.

He has led Indigenous consultation processes, spearheaded corporate sustainability strategies, rebuilt teams and organizations, and championed initiatives that delivered more than $1B in tax savings for members. Karim is also an experienced moderator and keynote speaker, frequently sharing insights on ESG, stakeholder engagement, and responsible leadership.

Karim holds an Executive MBA from the University of Calgary and a Master of Environmental Studies from York University. He also holds the Fundamentals of Sustainability Accounting (FSA) credential and has his Global ESG Competent Boards Certificate and Designation.

Kerry Ground headshot

Kerry Ground

Partner & Principal Consultant

Kerry Ground

Partner & Principal Consultant

Kerry is a Partner & Principal Consultant at Sustrio with nearly 20 years of expertise in delivering impactful solutions to corporations, communities, governments, non-profit organizations, and investors across a wide array of industries worldwide. Kerry’s specializations encompass ESG and sustainability due diligence, strategy, and reporting; corporate social responsibility; local content; and the development of comprehensive environmental and social risk and impact assessments and management plans. With a keen focus on stakeholder engagement and Indigenous Peoples relations, Kerry fosters meaningful connections to support development and implementation of tailored stakeholder engagement plans and community investment programs. Working in corporate and consulting with clients from diverse backgrounds in multiple countries, Kerry has proven success developing and solidifying long-term relationships with both internal and external stakeholders through strong technical background and communications.

Kerry holds a Master of Science in International Planning and Development with a focus on Environmental Management and Program Evaluation from the University of Guelph, as well as a Bachelor of Arts double concentration in Geography and Governance and Public Policy from the University of Ottawa. She is a certified Third-party Verifier for the Mining Association of Canada’s Towards Sustainable Mining (TSM) standard and Assessor for Equitable Origin.

We Belong

Memberships & Associations

We stay current on leading sustainability and ESG practices through active membership in prominent organizations.