Galaxy recently contract two shipments priced at US$480 per dry metric tonne for its concentrate for delivery in February and March and said prices had increased 10% in the past two weeks.
Mt Cattlin produced 108,658t of concentrate in 2020, with the operation having full capacity of more than 190,000t.
Costs on an FOB basis last year were about $450/t.
Full production at Mt Cattlin is expected to be reached in the second quarter.
Meanwhile the company will deliver strong news flow from its two advancing growth projects this quarter.
Updated financials for its Sal de Vida project in Argentina will be released, as will scoping study results for James Bay in Canada.
On the financial front, debt-free Galaxy completed the December quarter with reported cash and financial assets of $215 million.
An equity raising of A$161 million priced at $1.70 per share was completed last quarter.
Shares in Galaxy were down 5% to $2.86 in midday trade, capitalising the company at $1.44 billion.
