About Us

Discover our story and the passion behind everything we do.

We possess a profound understanding of the complex challenges facing modern industrial production—where unwanted operational issues are often inevitable. From persistent scale buildup in evaporative condenser, cooling tower, and stubborn grease blockages in piping, to pungent odors emanating from wastewater treatment, livestock farms, and waste disposal sites, we recognize the impact these problems have on your efficiency.

Drawing upon our extensive expertise in eco-friendly innovation, we have partnered with local a community enterprise to pioneer transformative solutions. Our approach seamlessly integrates time-honored Thai wisdom with potent herbal extracts. We take pride in our 100% chemical-free production process, ensuring that our commitment to performance is matched only by our dedication to the planet.

Our Founders

Merging Scientific Expertise with Visionary Leadership

At the heart of Siamwanmai Bioherb Co., Ltd. our foundation is built upon the synergy of two distinguished leaders. And our mission is to elevate Thai herbal innovation to the global stage, ensuring that industrial progress and nature go hand in hand.

Lt. Col. Chanest Butthep

Chief Executive Officer (CEO)

Lt. Col. Chanest Butthep is a distinguished expert in Medical Technology and Toxicology, bringing over three decades of scientific innovation and executive leadership to the industry. With an academic foundation in Medical Technology (B.Sc.) and Toxicology (M.Sc.), he dedicated 14 years to the Royal Thai Army Medical Department, where he spearheaded the advancement of clinical chemistry and microbiological diagnostic systems.

Transitioning into the corporate sector in 1992, Lt. Col. Chanest served as the Medical Equipment & Laboratory Department Manager at B.Grimm Healthcare. His career subsequently evolved toward sustainable chemistry, serving as Director of Research & Development with a focus on organic, biodegradable, and eco-friendly.

Driven by a vision to harmonize industrial efficiency with nature, Lt. Col. Chanest developed and pioneered anti-scaling and descaling solutions utilizing 100% natural and herbal extracts.

His deep research into the botanical properties of herbs from the Rammasak Community Enterprise in Ang Thong Province revealed extraordinary potential. He discovered that these local extracts possess sophisticated mechanisms for scale inhibition—comparable to the synthetic solutions he mastered, but with a purely natural footprint

Under his leadership at Siamwanmai Bioherb Co., Ltd., this innovation does more than protect industrial machinery; it creates a sustainable ecosystem. By integrating local wisdom with scientific rigor, the company has successfully empowered over 200 members of the local community enterprise.

Mrs. Preeyawan Khamyoo

Chief Operating Officer (COO)

With over 15 years of diverse leadership experience across multiple industries, Preeyawan Khamyoo is a visionary entrepreneur dedicated to sustainable business development.

In 2013, she co-founded World Green Plus Co., Ltd., an industrial waste management firm. Under her leadership, the company specializes in the professional handling of industrial by-products, including expired materials, sludge, plastics, paper, and obsolete packaging.

By utilizing cutting-edge technology and advanced machinery, World Green Plus ensures all waste is treated and transformed into environmentally safe materials, strictly adhering to legal disposal standards. The company continues to thrive in the green industry today.

Building on her success, Preeyawan expanded her portfolio in 2022 by establishing Siamwanmai Group Co., Ltd. investing in diverse and sustainable industries. In 2024, she embarked on her latest venture, co-founding Siamwanmai Bioherb Co., Ltd. alongside Lt. Col. Chanest Butthep.

Merging Scientific Expertise with Visionary Leadership