Company Overview

Driving sustainable growth

Deteriorating water quality is a global phenomenon which is attributed to an excess of nutrients entering freshwaters which is primarily driven by population increase and associated land-use change and climate change. This excess delivery of nutrients, in particular phosphorus, comes from three main sources:

  • agricultural run-off
  • industry
  • sewage treatment works





Surplus nutrients can cause undesirable symptoms in our freshwaters. As a result, we can observe biodiversity loss and the potential for local extinction events, all leading to the loss of ecosystem services.
Phoslock Environmental Technologies (PET) is a global leader in the treatment and remediation of freshwaters, particularly those impacted by excessive levels of phosphorus.

Our flagship product, Phoslock®, was originally developed by the Australian national science agency (CSIRO). This proprietary technology binds excess phosphate present within a system which forms the naturally occurring, stable, insoluble mineral, Rhabdophane. Phoslock has been extensively assessed by independent experts as having distinct advantages over competitive in-lake treatments.

The Phoslock technology is now being expanded into international markets, with additional technical and sales resources and a focused marketing strategy. A revised R&D program is generating product extensions that allow further diversification into new market segments.

In 2021, PET launched a new product, Phosflow™, developed with the U.S. EPA under a Cooperative Research and Development Agreement (CRADA) to adsorb phosphorus from water upon contact. Phosflow pellets are made from naturally occurring and sustainable mineral materials. It is non-hazardous, insoluble in water and non-toxic to aquatic plants and wildlife.

We take a multifaceted solutions approach to water remediation, using products and engineering techniques to achieve healthy waterways for the communities that rely on them.

PET was established in 2002 and is listed on the Australian Stock Exchange (ASX:PET).

Our vision

We aspire to be the trusted partner of choice to remediate and manage fresh water in all our chosen markets.

We are achieving our vision by:

  • designing a management strategy specifically for individual water bodies.
  • providing products such as Phoslock®and Phosflow™ along with technical application and support services.
  • offering a complete service from the initial sampling, diagnosis, application, engineering and post treatment monitoring and reporting.
  • manufacturing blended products to combat a variety of problems.
  • applying products to water bodies using application equipment designed for the individual situations.

Global Operations

Canada USA Brazil Europe China (Manufacturing) China (General) Australia



Key Contact

Dr Michael Doyle

GM R&D and ANZ Commercial


Key Contact

Lachie McKinnon

Managing Director & Chief Executive Officer



Key Contact

Viktor (Xiaoming) Li

General Manager

Daxing, Beijing
+86 138 1897 2687

China (Manufacturing)

Manufacturing & R&D



Key Contact

Bush Heathman

General Manager - USA

United States of America
+1 512 567 7896


Distribution Licensee - Hydroscience

Key Contact

Dr Tiago Finkler Ferreira


Porto Alegre - RS
+55 51 9364-0138



Key Contact

Damian Whelan

General Manager

United Kingdom
+44 7553 773 426


PET has a purpose-built factory measuring over 6,000sqm, located in the Chinese economic zone of Changxing (150km from Shanghai), the new factory also now incorporates our  Engineering department, Chemical research and New Product Development.

Find out more

Contact us today.

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Freshwater eutrophication has been estimated to cost the U.S. economy US$2.2 billion annually (Dodds et al, 2009) while in the U.K. these costs have been estimated at between US$105-160 million (Pretty et al, 2003).

A survey of the state of the world’s lakes by the International Lake Environment Committee (ILEC) in 1993 found that 54% of the lakes in Asia were eutrophic, while in Europe and North America, the percentages were estimated at 53% and 48% respectively.