Yeung Kin-Man Net Worth, Relationships, Age/Birthdate & Birthday

Yeung Kin-Man is a Hong Kong entrepreneur renowned for founding Biel Crystal Manufactory — once the world’s largest producer of smartphone touch-screen glass panels.

Introduction

Yeung Kin-man is a self-made industrialist whose rise from humble watch-glass manufacturing to global supplier status earned him significant wealth and influence. Born on December 6, 1948, his business acumen propelled him to helm Biel Crystal, which supplies screen glass for smartphones worldwide. His estimated net worth has ranged widely in public sources, reflecting both the scale of his business and the fluid nature of private valuations. Married to Lam Wai Ying, he maintains a low-profile personal life while commanding respect in the manufacturing and philanthropic communities.

Here’s a snapshot of key facts about Yeung Kin-man:

From Humble Watch-Glass Roots to Global Smartphone Supply

Yeung Kin-man’s journey began in Hong Kong. With no formal university degree, he started a modest watch-glass manufacturing business in the 1980s. 

As demand for mobile devices surged in the early 2000s, Yeung repositioned his business. In 2003, when Biel Crystal received its first major order for glass panels for mobile phones — at a time when the factory was only producing a few thousand watch glasses monthly — Yeung took a bold leap. He invested heavily in modern machinery to meet the demand for millions of units.

That decision proved transformative. Orders multiplied rapidly: from a single-digit millions to tens of millions — eventually establishing Biel Crystal as a dominant global supplier for smartphone makers including major brands. 

Defining moments in Yeung Kin-man’s journey include:

• Transitioning from watch-glass to mobile phone glass manufacturing in the early 2000s.

• Securing initial major orders in 2003 and scaling production via strategic investment.

• Expanding manufacturing capacity across Mainland China and beyond.

• Diversifying the business to cover not just smartphone glass, but also automotive display covers, tablet & notebook panels, and modern touchscreen innovations. 

The Core Pillars of Yeung Kin-Man’s Wealth

Yeung’s wealth is rooted in a few stable, capital-intensive pillars — and his long-term control over them has allowed wealth accumulation over decades.

• Biel Crystal Manufactory — As founder, president, and chief technology officer of this enterprise, Yeung retains majority control, and Biel remains a major global supplier of glass and touchscreens for mobile devices. 

• Manufacturing & Global Supply Chains — The company operates extensive manufacturing facilities in Mainland China, producing touchscreen glass, watch glass, and other optical components for a wide range of consumer electronics. 

• Diversified Investments & Corporate Roles — Beyond product manufacturing, Yeung holds executive and director roles in multiple related companies and associations, contributing indirectly to wealth through holdings across technology, real estate investments, and regional industrial networks. 

Relationships & Private Life

Although Yeung Kin-man maintains a discreet public profile, available information offers a glimpse into his personal and family life.

• His wife is Lam Wai Ying, who co-owns Biel Crystal — she holds 49% of the business while Yeung retains 51%, underscoring a shared entrepreneurial partnership.

• Together they have reportedly raised a family, though the couple generally stays out of the spotlight. 

Key insights into Yeung Kin-man’s relationships and personal life:

• Marriage to Lam Wai Ying represents both personal and business partnership.

• Their joint ownership structure provides stability for the company’s leadership and complements Yeung’s operational role with Lam’s strategic oversight.

• The couple tends to keep family details private, focusing public attention on business achievements rather than personal narratives.

Lifestyle, Assets & Interests

Beyond business success, Yeung Kin-man’s lifestyle reflects both his achievement and desire for privacy.

• In 2024, he and his wife bought four mansions on “The Peak” in Hong Kong — a high-prestige residential area — through a family investment vehicle. 

• The purchase underlines a preference for securing valuable real estate assets, though the properties remain primarily private, with little public display. 

• Yeung’s philanthropic efforts are notable: he has directed substantial resources toward education, including establishing an endowed professorship at The Hong Kong Polytechnic University, and supporting other institutions — reflecting a commitment to giving back as part of his personal interests. 

Net Worth: Breakdown & How It’s Estimated

Evaluating the net worth of a private entrepreneur like Yeung Kin-man requires piecing together public data, business valuations, and asset disclosures. Different sources have produced varying estimates over time, depending on assumptions about company value, real estate holdings, and other investments.

The core drivers of his net worth include ownership in Biel Crystal, real estate assets, and diversified investments. Below is a breakdown based on publicly available valuations:

Because analysts use different methods — book value vs. estimated future value, inclusion of real estate or not, etc. — some sources have placed his net worth significantly higher than the conservative estimate.

For example, one outlet claims Yeung’s net worth has been as high as US$ 9 billion.  Meanwhile, rankings of Hong Kong billionaires list him around US$ 2.3 billion. 

Influence, Public Image & Legacy

Yeung Kin-man is widely respected in business and manufacturing circles — though he maintains a low public profile. His legacy can be understood across several dimensions:

• Industry Influence: By pioneering large-scale smartphone glass production, he helped shape the supply chain for major global device makers. Biel Crystal’s dominance in touchscreen and cover-glass manufacturing means Yeung’s work impacts millions of devices worldwide — effectively touching a large portion of smartphone users globally.

• Philanthropic Impact: Through donations, endowed academic positions, and support for educational institutions, Yeung has contributed to advancing industry education and nurturing future talent.

• Reputation as a Self-Made Visionary: Starting without a formal degree, Yeung’s rise showcases entrepreneurial grit, strategic foresight, and willingness to take calculated risks. That narrative resonates with aspiring entrepreneurs and industry watchers.

• Privacy & Respect: Unlike many high-profile billionaires, Yeung keeps his personal life discreet, focusing public attention on business and philanthropy rather than extravagance, which lends him a dignified public image.

Conclusion

Yeung Kin-man’s journey — from a modest watch-glass maker to the helm of a global touchscreen glass manufacturing empire — exemplifies the potential of vision, perseverance, and calculated risk-taking. Born on December 6, 1948, his birthdate and birthday remain fixed milestones marking the start of a life that would impact millions of smartphone users worldwide.

With an estimated net worth ranging from a conservative US$ 2.3 billion to higher speculative valuations, substantial real estate holdings, and a powerful business legacy through Biel Crystal, Yeung Kin-man stands as a towering figure in global manufacturing. His marriage to Lam Wai Ying underscores a partnership that blends personal and professional realms.

Beyond wealth and business success, his philanthropic efforts and industry leadership suggest a legacy built not just on profit — but on lasting influence. For those studying entrepreneurship, manufacturing, or industrial scale-up, Yeung’s story reveals how dedication to quality, timely adaptation, and strategic vision can leave an enduring mark.