RNS Number:6642L
Virotec International Ld
29 May 2003

29 May 2003


                        VIROTEC SIGNS LICENCE AGREEMENT

                               WITH TRYTON GROUP


Virotec International Ltd (ASX/AIM:VTI) is pleased to announce the signing of a
three-year license agreement with Tryton Group Pty Ltd for the use and supply of
Virotec's ViroGrowTM product.

Tryton (www.tryton.com.au) is a waste management and agricultural group that
combines advanced technology and extensive research and development with the
process of vermiculture to manufacture and produce the highest quality
bio-fertilisers for sustainable agriculture.  Tryton's Lismore, New South Wales,
facility is one of the largest enclosed worm farms in the world, and several
bio-products, in the form of liquid soil conditioners and fertilisers, are
produced at this facility.  Products are principally derived from a
vermi-composting process.

Tryton has developed a range of liquid products based on the extraction of
bacterial and fungal bio-mass, blends of natural hormones and plant available
nutrients and bio-chemicals for sustainable crop nutrition.

The license is initially for a period of three years and relates to the use of a
new Virotec fertiliser additive, ViroGrowTM, for use in Tryton's fertiliser
manufacturing process, and relates to sales of its BioStarterTM product in
Queensland and New South Wales, Australia.  BioStarterTM is a combination of
micro fine liquefied vermicast of high organic origin, blended with calcium,
plant available nutrients, humic and fulvic acid, and a diversity of beneficial
bacteria, fungi, protozoa and nematodes.  ViroGrowTM contributes micronutrients
to the soil, binds copper and magnesium present in the soil, and buffers pH and
eliminates CO2 in the BioSarterTM.

The revenue attributable to Virotec in the form of a licence fee and minimum
annual quantities will be greater than A$110,000 over the first three years of
the license.  This agreement follows several months of successful trials of the
ViroGrowTM reagent in the production of Tryton's BioStarterTM fertiliser.
Importantly, while the contract value is not significant in light of Virotec's
existing revenue, this agreement represents the first commercial licensing of
Virotec's ViroSoilTM Technology.

The signing of this licence follows the recent announcements of a license for
the ViroFlowTM Technology to a tannery in Australia, successful commercial
treatment using the ViroMineTM Technology at the Agua Forte mine site in
Portugal, and the commercial launch of ViroSoilTM Technology at a large prawn
farm in Australia.  All of these technologies have been developed from Virotec's
platform BauxsolTM Technology.


Virotec International Ltd develops new technologies and manufactures,
distributes and applies new market-driven environmental products for water and
soils. For further information, please visit our web site at www.virotec.com.

Enquiries:   
Virotec International Ltd   
ABN 81 004 801 398
PO BOX 188
Sanctuary Cove QLD 4212
Australia
www.virotec.com
Tel: +617 5530 8014






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