Greenfern is listed on the New Zealand Stock Exchange under the ticker GFI.

How to invest | You can purchase shares in Greenfern through a NZX participant like Sharesies, your investment advisor or with any other NZX participant as listed here.

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About Greenfern

Greenfern Industries Limited is an entrepreneurial-led licensed medicinal cannabis and biotechnology company that also has operations spanning into the industrial hemp, hemp food and body care space.

Greenfern operates primarily from their medicinal cannabis research facility and hemp processing hub in Normanby, South Taranaki, with these facilities being powered by renewable energy generated by Greenfern’s own hydroelectric power station located adjacent to the facility on the Waingongoro River.

Greenfern is committed to environmentally friendly production of medicinal cannabis and hemp-based products. The medicinal cannabis research facility is designed around maximum efficiency and sustainability, being powered by renewable power and utilising an aeroponic production system which is renowned for its optimal water and nutrient efficiency. Greenfern’s hemp production also follows the same ethos. The hemp seed and its by-products are used for a range of different products from a high protein ingredient in a plant-based meat substitute, a hemp-based skin care range and hemp-based beverages amongst other things.

Greenfern is Toitū net carbonzero certified and is a B Corp Certified company.

Patients before profit

Environmental Sustainability


Medicinal Cannabis

We cultivate premium and consistent quality cannabis and through research and development we are creating a pharmaceutical grade product range.

Hydro Power

Located on-site at our own hydroelectric power station. Our entire Taranaki operation is powered by clean green cost-price renewable hydro power with all the excess electricity sold back to the grid providing an additional source of revenue.


We are committed to environmental sustainability in all aspects of our processes.

Our net carbon-zero certification and our unique ability to produce renewable energy to power our facilities aligns us well to this commitment.

View our sustainability plan here

Toitū Carbon-Net Zero Certified

B Corp Certified


Our motivation is drawn from Theo’s story, a story of the difference that Cannabis extracts can make to the lives of those suffering from epilepsy and their families.


Greenfern secures lucrative export deal

Greenfern secures lucrative export deal

Greenfern Industries has secured a lucrative export deal that could be worth more than $1.6m.

The initial two-year agreement is an offtake order for the purchase of Greenfern’s Taranaki-grown medicinal cannabis.

An offtake agreement is a binding contract that formalises the buyer’s intention to purchase a certain amount of the producer’s future output.

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Greenfern Industries attains important industry certification

Greenfern Industries attains important industry certification

Greenfern Industries Limited is pleased to announce it has attained its globally-recognised GACP (Good Agriculture and Collection Practice) certification for its cultivation facility based in Normanby, Taranaki.

“This is a milestone that the team has been working towards for some time since commencing cultivation and research and development in our pilot stage one facility,” said Greenfern’s managing director Dan Casey.

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GFI sees growth in Australian medical cannabis prescriptions

GFI sees growth in Australian medical cannabis prescriptions

Greenfern Industries' GMP medicine prescription sales in the Australian market are going from strength to strength.

The company began distribution of its GFI Pharma-branded medicinal cannabis oil tinctures with Australian partner Cannvalate in November 2021. Since then, GFI has seen an average new patient increase of 42% month on month with an average return patient rate of 27% month on month.

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Small community roots. Big important vision.

We’re on a mission to show people that cannabis is something that can improve the well-being of individuals and communities.

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