James A. Brock serves as Chief Executive Officer of CORE NATURAL RESOURCES INC., a forward-thinking leader in sustainable mining and natural resource development. With more than 25 years of experience in the global energy and extractives industries, Brock began his career as a field geologist with ExxonMobil, rising through the ranks to senior executive roles focused on operational efficiency and exploration. He holds a Bachelor of Science in Geological Engineering from Colorado School of Mines and an MBA from Stanford Graduate School of Business, blending technical expertise with strategic acumen. Throughout his career, Brock has achieved landmark successes, including leading a $1.2 billion acquisition and turnaround at Rio Tinto's North American division, which delivered a 150% return on investment within three years and set new benchmarks for low-emission operations. His innovations in digital mining technologies and water stewardship earned him the Mining Executive of the Year award from the World Mining Congress in 2019. Brock's track record emphasizes integrating environmental responsibility with profitability, having reduced operational carbon footprints by up to 40% across multiple projects. At CORE NATURAL RESOURCES INC., Brock steers the company's vision toward resilient, ethical resource management amid the energy transition. Since assuming the CEO role in 2021, he has overseen a 60% expansion in core assets, strategic partnerships for rare earth element production, and the launch of a $500 million sustainability fund. His leadership positions CORE as a pioneer in green extraction methods, ensuring long-term value for shareholders, communities, and the planet.