The US investment firm, which is lead underwriter and sole book-runner on the deal, will purchase more than 27.7 million shares, at US$0.83 per share.
Cantor Fitzgerald has an over-allotment option to purchase up to an additional 4.2 million shares at the same price up to 30 days after the offering closes on November 17, which could raise an additional US$3.5 million.
Taseko will also undertake a private placement worth up to $2 million.
As well as funding development at Florence, Taseko said proceeds would be used for general corporate purposes and working capital.
In August, Taseko received a draft aquifer protection permit for Florence, putting it on track to achieve full permitting status by early next year.
The company claims Florence is one of the lowest capital intensity copper projects in the world. Total capex is estimated at $227 million.
Shares in Taseko were flat at 77.5p on the LSE following Thursday's announcement, valuing the company at £ 191.6m.
