Skip to main content

Chestnut Natural Capital Chestnut Natural Capital

Research and innovation

Chestnut Natural Capital
Tree planting is fundamental to the forestry industry, and it is an essential element of mitigating the impacts of climate change.


Trees are natural carbon capture and storage machines, absorbing carbon dioxide in the atmosphere through photosynthesis, then locking it up for centuries. However, methods currently used to protect growing saplings is resulting in unnecessary plastic production and pollution.

99% of the materials used to create plastics come from non-renewable resources that cause pollution such as chemicals derived from oil, coal and natural gas. Chestnut Natural Capital aim to tackle this issue by creating a range of tree planting products which biodegrade into the natural environment after five years.

Chestnut Natural Capital were experiencing difficulties with their current bio-based blend used to create their tree guards and utilised our support to investigate and resurrect the issue. With global tree planting activity being responsible for an annual influx of 700 tonnes of polypropylene, we saw huge carbon dioxide uptake potential from this project.


Chestnut Natural Capital have worked closely with our Circular Economy team of technical and academic experts and accessed state-of-the-art facilities. Our Circular Economy lab has materials characteristic equipment which allowed Chestnut Natural Capital to test out the resistance and reliability of different formulations of their product, in addition to providing industry standard testing of new formulas and materials.


Together, the Net Zero Industry Innovation Centre and Chestnut Natural Capital have successfully created a new sugar-based polymer blend which can be used for not only tree guards but a variety of different products such as rabbit guards, vole guards, deer guards, weed mats, cable ties and trimmer cord. The wider impact of this project is to, where possible, remove non-renewable-based plastics out of the supply chain and replace them with a more sustainable, and circular alternative.

Chestnut Natural Capital has been working with the Net Zero Industry Innovation Centre in ridding forestry of oil-based plastic by creating an alternative product which serves the same purpose but composts to carbon dioxide, water and inert mineral. The centre has allowed us to show our nature based materials can help in nature based solutions across the world. The first two are coral reefs in the Maldives and Mangrove forests in Ghana.

Ian Brown, Owner & Director (Chestnut Natural Capital)

Working with Chestnut Natural Capital has been a mutually beneficial experience as we’ve been able to draw on their vast experience and knowledge within the farming and forestry industrial sectors. The new product Chestnut Natural Capital have created will help erradicate plastic pollution within the forestry industry.

Dr Ellis Marshall , Business Innovation Manager (Net Zero Industry Innovation Centre)

This project is part-financed by the European Regional Development Fund (ERDF), managed by the Department for Communities and Local Government, securing £300m investment.

The project will make a major contribution to the ambition of the ERDF Competitive Programme 2007-13 and by increasing the numbers and survival of business start ups in the region and increasing business productivity.

Quorum Development
Ten Feet Tall
Tapered Plus
North Tees and Hartlepool NHS Foundation Trust
Sunderland City Council
Arts Council
Peel Jones - Knowledge Transfer Partnership
Avenium Engineering
Micropore Technologies
Corksol Ltd
Sofia takes on two Teesside University interns during 2020
Mersen UK
The Faraday Training Centre
Chestnut Natural Capital
ERW Joinery LTD
Semester Student Planner
Core Systems Software
Three Brothers Brewing Company
AVGO Biotech
Raojis Enterprises Ltd
Scott Brothers
Rounton Coffee Roasters
Lionweld Kennedy
Marlow Ingredients
Bond Solon
Yellow Box Marketing
eLamb Ltd
Hobgoblin 3D
Bondgate IT
Cumbria Constabulary
DuPont Teijin Films
Go to top menu