Garth has been employed at Scion for 33 years and has been managing the commercial pulp and paper testing services since 2012. He is an expert in commercial fibre-based testing and corrugated board and packaging research and has built strong relationships with both external companies and other research institutes.

Additionally, he is involved in certifying materials used in the New Zealand building industry for compliance with construction and residential building codes relating to external moisture, duty classification and pliable membranes. He is a member of PK-019 Appita standards testing committee for methods of test for pulp and paper as well as ISO/TC 6/SC 2 committee for test methods and quality specifications for paper and board. In the recent years he has been involved in evaluating products for repulpability and helping develop new methods for recyclability potential.