The ferroalloy producer holds 85% of Brazil's chromite reserves and is the largest producer of chrome ferroalloys in the Americas.
Niobium producer CBMM and technological research institute IPT have already invested about US$4mn to develop the technology and processes needed to manufacture magnets for use in wind turbines and electric vehicle motors.
The Organization of American States had called a meeting of foreign ministers to address the crisis in the country.
Steelmaker expects continued strong steel demand driven partly by industrial consumption in Mexico and infrastructure spending in Argentina.
The companies currently operate eight plants in Brazil through joint venture partnerships.