A community forestry management
platform by xpand Foundation.

A tree-tracking green tech platform to manage and monitor carbon farming to the highest possible international standards.

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Our platform uses RFID nails to geo tag every tree we plant. Our app allows us to track, measure and monitor our impact, pay our farmers and calculate carbon drawdown.

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trees planted




farmers earnings


tonnes of carbon drawn down


We manage plant nurseries, propagating roughly 50,000 saplings annually.

We geo

RFID nails and tags log the tree coordinates, species and planting date in our database.


We track and report data on tree growth, survival rate and carbon stored.

Carbon Credits

Our carbon credits from Timor-Leste are certified by a leading global certifying body, The Gold Standard Foundation. Gold Standard for the Global Goals sets the standard for climate and development interventions to quantify, certify and maximize their impact – creating value for people around the world and the planet we share.

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Our smallholder tree farming enterprise puts earned dollars in the pockets of Timorese tree farmers and helps build village economies.

Meet Our Farmers

Each tree on the map represents a farmer growing trees in our program. The size corresponds to the number of trees they are growing. Click on individual trees for more information.


What’s our legal structure?

TreeO2 and WithOneSeed are projects of the xpand Foundation based in Australia. The xpand Foundation is a registered charity with the ACNC. Click here for more information about the xpand Foundation.

How do I become a tree-adopting partner?

This is the simple bit. Both businesses and individuals can become tree adopting partners.

If you are a business, you can email adopt@treeO2.org and we will contact you with all of the information you need to partner with us and support tree planting and subsistence communities in Timor-Leste.

If you are an individual and want to adopt trees to help drawdown carbon from the worlds atmosphere, click here and adopt a tree today.

Are you a registered charity?

Yes, we’re a company limited by guarantee registered with the ACNC.

Can you prove my impact?

Yes! TreeO2 is not just a website to enable you to adopt, it is a full Community Forestry Management Platform. The platform allows us to track every tree planted and report on an annual basis the tree survival rate, tree growth rate, tree carbon storage, number of tree farmers earning an income from managing the trees and the total income into village-based economies in Timor-Leste.

WithOneSeed is also a Gold Standard Foundation afforestation/reforestation certified program. As with all international certifications, WithOneSeed is required to undertake regular independent third-party audits of all our activities.

What's stopping someone from cutting down the newly planted tree?

WithOneSeed pays the farmers annually for every tree that survives. This incentive payment acts as a positive reinforcement about the value of trees both in monetary terms and also environmental terms.

WithOneSeed has a very strong community building focus and carbon farming can only be viable for these communities if it is a one in, all in mentality. WithOneSeed requires a whole of community participation model to succeed.

What's the survival rate of these trees?

The current survival rate of trees planted and managed under the WithOneSeed model is 74%.

How much carbon does a tree sequester?

This is a hard question to answer as sequestration rates depend on many variables including soil, rainfall and surrounding environment. The WithOneSeed program measures carbon for the total new forest which over the past 10 years has been just over 80,000 tonnes of CO2e. This will increase with tree growth and the addition of more trees.

Is my carbon footprint offset by newly-planted trees?

No. You are adopting these trees so that more trees can be planted. The income raised goes to the propagation of over 50,000 seeds a year.

The carbon that is stored in these forests is owned by the farmers who are planting and managing these trees on their own smallholder farms. The income from the sale of the carbon credits into the international carbon market is all returned to the farmers.

Who is checking to see the tree was planted, and whether it grows?

This is where TreeO2 is more than just a everyday tree adoption service. TreeO2 is a full Community Forestry Management Platform. Every tree planted is counted and growth is measured every year. This information is maintained in a cloud based database and assists WithOneSeed with it international reporting obligations.

When you adopt a tree, you are not paying an anonymous person to plant a tree for you somewhere in the world. You are paying to help maintain a tree that has already been planted by a subsistence farmer in Timor-Leste.

How will you know this? You will be able to see every tree you adopt on a map and you will also be able to see the farmer(s) who manage the trees.

Are the trees being planted varied and native species?

They sure are! Monoculture forests and non-native species do not fall under the category of responsible reforestation.

There are currently 7 species of tree planted in the WithOneSeed Community Forestry Program. They are; mahogany, teak, sandalwood, casuarina, rosewood, eucalyptus and sterculia foetida.

Are the tree farmers being cared for and paid fairly?

The WithOneSeed Community Forestry Program approach is simple in its theory and application. We’re planting trees and planting ideas. Our innovation comes from the annual incentive payments made to subsistence farmers who maintain the trees. If a subsistence farmer has to choose between planting a cash crop or planting trees that may take 20 years to provide a financial return, the choice is obvious. However, if we can make a cash crop from trees that sequester carbon, the equation is quite different.

“To put an ‘earned’ dollar in someone’s pocket gives them the power to determine their own future. WithOneSeed supports communities to move beyond charity and aid by delivering opportunities for communities and individuals to become economically independent”. Andrew Mahar AM Co-founder WithOneSeed.