Matthew Rowlinson

PolyMet Mining Corp. engages in the exploration and development of natural resource properties. It develops and operates the NorthMet project in Minnesota, which hosts copper, nickel, cobalt, and platinum group metal mineralization. The company was founded by John P. McGoran on March 4, 1981 and is headquartered in St. Paul, MN.

Ernst & Young LLP engages in the provision of accounting, assurance, tax, transaction, and advisory services. It specializes in the actuarial, analytics and big data, cyber security, accounting compliance and reporting, center for board matters, international financial reporting standards, country tax advisory, global trade, tax accounting, and climate change and sustainability. The company was founded in 1989 and is headquartered in New York, NY.

Compañía Minera Antamina SA operates as a poly-metallic mining complex, engages in the production of copper, zinc, molybdenum, silver and other concentrates, as well as other by-products. The company was founded in 1981 and is headquartered in Santiago de Surco, Peru.

Compañía Minera Doña Inés De Collahuasi SCM is a private company based in Santiago, Chile. The Chilean company provides copper mining services.