Waste Not,
Innovate More

We deliver the best circular economy solutions for every client’s needs.

Corporate Foundation

Pioneering Climate Technology Since 2020

Founded in 2020, CLS Environmental Technologies Limited is a pioneering material manufacturer and climate technology developer.

Our mission is to tackle global environmental challenges and create a sustainable, low-carbon, and circular society through advanced chemical engineering.

Research & Development

Our Focus

Biomass Waste Upcycling

We specialize in converting biomass waste, such as biochar and other organic materials, into high-value graphene materials. This innovative process transforms waste into a valuable resource, reducing landfill waste and promoting heavy industrial circularity.

Non-Soil Applications

We explore diverse applications of biochar and biomass graphene beyond traditional soil amendments. Our dedicated research investigates their massive potential in various industries, including advanced construction, solid energy storage, and water purification.

Guiding Principles

Our Values

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Collaboration

We believe the greatest environmental challenges are solved together. We partner with heavy industries, researchers, and communities to create lasting impact.

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Results Maximization

Every tonne of waste we convert is measured. We focus strictly on scalable, commercially viable solutions that deliver real environmental and economic returns.

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Excellence

From R&D to production line, we hold ourselves to the highest standards. Our technology is backed by rigorous scientific research and active real-world testing.

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Innovation

We push boundaries in material science. Turning raw biomass waste into graphene isn’t just clever — it’s the kind of breakthrough that redefines what’s possible.

Leadership

Meet Our Team

Pirry Leung

Founder & CEO

Pirry has worked in environmental technology for 15 years. He has been involved in multiple sustainability startups and founded several advanced environmental tech ventures.

Oliver Yeung

Founder & CTO

Oliver holds extensive R&D experience in photochemistry and green chemistry. Prior to CLS, he was a senior research fellow at HKPolyU and received his Chemistry PhD from HKU.

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