He was previously CFO at Ramelius Resources until a year ago when the company's offices moved from Adelaide to Perth and has over 15 years' experience in corporate finance, accounting, risk management and business development.
Iacopetta will work alongside Stephane Gauducheau as company secretary until June 29 when Gauducheau will step down.
Terramin CEO Richards Taylor said Iacopetta's skills and experience would help to achieve the company's 2018 goals, including receiving approval for the Tala Hamza zinc and Bird-in-Hand gold projects and moving them into the development stage.