The funds will be used to help pay off the acquisition of the Bibiani gold mine in Ghana and kick-start the mine's development.
The company said it has received "significant investor interest" in the private placement, which is at a price of C$1.75 per common share.
Asante said that Emiral Resources, which holds about 19.6% of the company's outstanding common shares, indicated that it would participate at a level sufficient to maintain its current percentage shareholding.
"Funds will be used for working capital, including the payment of the second US$30 million payment to Resolute Mining Ltd for the Bibiani mine acquisition, initial mine development costs at the Bibiani mine, and for other potential opportunities," Asante said.
Asante acquired the past-producing mine from Australian Securities Exchange-listed Resolute Mining in August last year in a US$90 million deal.
Resolute picked the mine up in 2014 and investigated a restart, before announcing a strategic review and a sale to China's Chifeng Jilong Gold - which fell through after Ghana temporarily terminated the mining lease.
Asante is planning for a first gold pour in the third quarter of this year and for production of 175,000ounces of gold for the first year, 220,000oz/y for year two, and 200,000-255,000oz/y for years three to eight.
Asante shares traded at an all-time record of C$1.70 on February 17.