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John Cullen has extensive experience in the mining sector, currently serving as the Operations Manager and Statutory Mine Manager at Yancoal Australia Ltd since May 2015, focusing on Stratford Coal Operations. Previous roles at Yancoal include Business Improvement Manager and Manager of Mining Projects for Ashton Coal Operations. John Cullen also held positions at Peabody Energy and Rio Tinto, where responsibilities included Continuous Improvement Manager, Mine Manager, and Mining Superintendent. Additional experience encompasses roles at Glencore and Dyno Nobel, alongside a foundational career at Rio Tinto and Peabody Energy. John Cullen holds a degree in Mining Engineering from UNSW and is pursuing an MBA at the University of Newcastle.