Ero Copper Corp. announce that it intends to offer $400 million of Senior Notes due 2030 (the "Notes"). The aggregate principal amount, interest rate and other terms of the Notes will be determined at pricing and are dependent upon market conditions and other factors.

The Notes will be unconditionally guaranteed on a senior unsecured basis by the Company's 99.6%-owned Mineração Caraíba S.A. subsidiary. The Company intends to use the net proceeds from this offering, together with cash on hand, to repay the outstanding balance under its senior secured revolving credit facility of approximately $50 million, for capital expenditures related to the construction of the Boa Esperança Project, which is expected to commence in second quarter 2022 subject to receipt of approval by the Board of Directors of the Company, and for general corporate purposes. Conditioned on the successful closing of the proposed Notes offering, the Company expects to reduce the size of its senior secured revolving credit facility from $150 million to $75 million.