Experienced executive Stephen Axcell has now joined the board. Axcell will also join the firm's project steering committee, it said.
"Mr. Axcell is an executive leader with 38 years of experience with strengths in mining operations management and project management execution, including process plant design and construction management; with industry expertise in mining and minerals, pharmaceutical, and hydrocarbon projects," Excelsior said in a regulatory release.
"He has vast experience in international design and construction projects. Experience includes management and oversight of large and small projects, complex process facilities in both green-fields and retro-fit (brownfields) environments."
Mark J. Morabito, chairman of Excelsior, added: "His vast array of experience in project management, process plant design, and construction management will bring valuable input to the team and we look forward to his contributions as our world-class management team drives the company forward to production targeted for 2019."