At the core of Polystone stands its founder, May Koh — an entrepreneur, artist, and pioneer who has spent nearly five decades redefining how natural stone is experienced in architecture, design, and art.

What began as a deep fascination with the natural beauty of marble and granite evolved into a lifelong pursuit of craftsmanship and innovation. Through vision, perseverance, and an unwavering eye for detail, Mrs. Koh transformed Polystone into one of Singapore’s trusted names in premium natural stone — serving architects, designers, developers, and discerning homeowners both locally and internationally.

Her philosophy has always been simple yet profound: stone is not just a material — it is a living canvas shaped by nature and human creativity. This belief continues to guide Polystone’s work with marble, granite, quartz, and rare semi-precious stones.

Beyond the world of stone, Mrs. Koh’s creative spirit extends into the arts. She founded May Koh Arts Unite, a collaborative platform where artists come together to create works that challenge perspectives, spark dialogue, and resonate deeply with the public. Through this initiative, she champions the power of artistic expression as a bridge between people, ideas, and emotions.

Her entrepreneurial journey also led to the creation of Avanti Coffee, a venture inspired by her belief that meaningful experiences are often built around simple moments of connection — conversations over coffee, shared spaces, and community.

Across stone, art, and hospitality, Mrs. Koh’s work reflects a singular philosophy: that creativity, craftsmanship, and human connection have the power to transform everyday materials and moments into something extraordinary.

Today, her legacy continues to shape Polystone and the creative communities around it — inspiring the next generation to see beauty not just in what is built, but in what is imagined.