Stuart Arnold is a seasoned professional in the field of metallurgy and process management, currently serving as Process Manager at OceanaGold Corporation since March 2025. Previously, Stuart held various leadership roles at Masan High-Tech Materials, including Manager of Operation Excellence and Innovation and Manager of MTC Operations, between December 2020 and March 2025. Prior experience includes positions as Superintendent of Metallurgy, Senior Metallurgist/Trainer, and Engineering Manager at NUI PHAO MINING COMPANY LIMITED from February 2017 to November 2020. Stuart's career also includes roles as Project Manager at Fenix Hydromet Australasia Pty Ltd and Senior Technical Service Engineer at Cytec in Freeport, Indonesia. Earlier, Stuart worked as a Senior Project Metallurgist at Western Metals Pty Ltd, a Commissioning Supervisor at Newmont Mining Corporation's Batu Hijau Operation in Indonesia, and a Plant Metallurgist at Normandy Mining. Educationally, Stuart holds a Bachelor of Applied Science in Metallurgy from Federation University Australia, completed between 1992 and 1995.
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