Team
Founder
Lyn Sia Rosmarin
CEO
Lyn Sia Rosmarin is an entrepreneur and impact strategist focused on building the infrastructure that enables organisations to integrate purpose into strategy, governance, and capital decisions. As Founder of Pandan Initiative, she works with businesses, institutions, and communities to translate social intent into measurable, decision-useful outcomes.
Her work spans impact frameworks, programme design, and advisory engagements that support leadership teams in navigating growth, transformation, and long-term value creation. Lyn brings a cross-sector perspective shaped by a career spanning investment banking and the building of two ventures across regional markets.
She is particularly committed to developing the next generation of leaders, designing initiatives that equip youth and organisations to move from intention to action—creating impact that is both meaningful and sustained.
Team
Yuwei Lin
Design & Marketing
Yuwei Lin is a designer and visual creative who is passionate about shaping ideas through imagery, graphics, and thoughtful design. At Pandan, she brings impact narratives to life by crafting visual experiences that help organisations communicate their purpose, values, and social contributions in ways that are both engaging and intuitive.
Longjin Guo
Legal Consultant
Longjin Guo is a seasoned business lawyer with over 15 years of experience across corporate, commercial, regulatory, compliance, and intellectual property law, having supported organisations operating across Asia, the Middle East, and international markets. Beyond his legal work, Longjin is deeply motivated by the role businesses can play in society, and regularly contributes his time and expertise to pro-bono and community-driven initiatives that expand access to knowledge, opportunity, and responsible growth.
Juliana Koh
Volunteer Lead Facilitator
Juliana Koh is a qualitative researcher and impact practitioner with over 20 years of experience across Asia Pacific and the Middle East, spanning corporate, academic, and non-profit environments.
She is Director of Research at the Centre for Sustainable Finance and Private Wealth (CSP), where she advances work on mobilising capital for social and environmental outcomes, particularly within business families.
At Pandan Initiative, Juliana serves as Volunteer Lead Facilitator, designing and leading programmes that bring design thinking and values-based inquiry to underserved youth communities in Singapore—helping translate value and lived experience into agency, ideas, and action.
She holds a Double Master of Science in Behavioural and Health Economics from Erasmus University Rotterdam.
Board of Advisors
Catherine Loh
Former CEO of Community Foundation of Singapore
Catherine Loh is a seasoned philanthropy leader and former CEO of The Community Foundation of Singapore, where she championed strategic giving and expanded one of the nation’s largest foundations. A CFA with a background in financial services, she combines investment discipline with social impact, mobilising significant resources to support hundreds of non-profits. Her deep commitment to education, community wellbeing, and collaborative impact makes her a valued advisor to Pandan’s mission of creating lasting social value.
Evonne Tan
Head of Barclays Private Bank Singapore
Evonne Tan is a seasoned private banking leader and Head of Barclays Private Bank in Singapore, with nearly three decades of experience in global wealth management. She specialises in delivering tailored investment solutions for ultra-high-net-worth clients, integrating sustainability and impact into holistic wealth strategies. A champion of purposeful capital and legacy planning, Evonne is a valuable advisor to Pandan’s mission to drive positive social and environmental outcomes through finance.
Nicholas Poh
CEO of Pulse TCM, Singapore
Nicholas Poh is a social entrepreneur and founder of PULSE TCM, a modern integrated healthcare brand reimagining Traditional Chinese Medicine for today’s communities. After a decade in banking and entrepreneurship, he transitioned to healthcare to make holistic care more accessible and relevant. Passionate about nurturing local talent and advancing digital health, Nicholas brings innovative, purpose-driven insight to Pandan’s mission of creating sustainable social value.
George Tumur
Former Ambassador of Mongolia to Singapore (2015-2021)
His Excellency George Tumur is an international business leader and former Ambassador of Mongolia to Singapore, the Philippines, and Brunei, recognised for bridging diplomacy, commerce, and investor relations across Asia. With senior leadership experience in natural resources and global capital engagement, he brings deep expertise in strategic leadership and cross-border collaboration. His global perspective and commitment to inclusive impact make him a valued advisor to Pandan’s mission of creating sustainable social and economic value.