Committee
29th International Conference on Paste, Thickened and Filtered Tailings
25–27 May 2027 | Quebec City, Quebec, Canada
Local Organising Committee
Dr Michel Julien
Vice-President, Environment and Critical Infrastructure
Agnico Eagle Mines Limited, Canada
Sue Longo
Conference Chair
Senior Technical Director
WSP, Canada
Sue is a principal and senior project manager with over 24 years’ experience in domestic and international mining projects, with a focus on backfill and tailings disposal in the mining, power and oil sand industries. Sue has worked on conceptual, feasibility and detailed engineering design mandates, as well as start-up and commissioning assignments and operation of pilot plants. She has acted as the design and site lead on a multimillion dollar contracted backfill delivery program for a closed uranium and gold mines in Canada.
CJ Mackay
Geotechnical Superintendent
Newmont Australia, Australia
Bernie Ting
Lead Engineer
T Engineering, Canada
Bernie is a passionate expert in mine backfill, equally fascinated by its history and the latest advancements in the field. With a diverse background spanning research, operations, engineering, and management across multiple industries, his work encompasses studies, detailed engineering, operations, commissioning, and troubleshooting of existing backfill systems. Beyond his daily engineering responsibilities, Bernie is frequently engaged as a subject matter expert to review backfill systems and other engineering projects. He has contributed to the industry through several peer-reviewed research papers. Personally involved from inception to completion of the backfill operation for the Giant Mine remediation, Bernie was part of the team that received the SCA Award in 2019 for its innovative application. While he enjoys both engineering and creative design, Bernie is best known for his deep passion for science, engineering, and using his skills to make a positive difference to society.
Marie-Helene Turgeon
Senior Director Water and Tailings
IAMGOLD, Canada
As senior director of water and tailings at IAMGOLD, Marie-Hélène leads strategies that safeguard operations while advancing sustainability. With 25 years’ experience, she shapes initiatives to integrate resiliency into project design, reduce risk and deliver lasting environmental and social value. Drawing on a career that spans operations, consulting, and governance, she brings a uniquely integrated perspective that fuels innovation and drives meaningful change. She connects strategy with execution – turning complex challenges into forward-thinking solutions.
Josephine Ruddle
Paste Event Manager
Australian Centre for Geomechanics, Australia