Media personality Okatakyie Afrifa-Mensah has sparked controversy over 's appointment as the Acting Managing Director of the Precious Minerals Marketing Company (PMMC).

In response to Gyamfi's appointment by President , Afrifa-Mensah, a staunch critic of the National Democratic Congress administration, questioned why Gyamfi, who had previously worked for Exton Cubic, a mining company, was selected to lead the Precious Minerals Marketing Company (PMMC).

According to him, Exton Cubic, the company Gyamfi previously worked for, was close to acquiring the Nyinahin Bauxite, raising concerns about the motives behind his appointment.

In a post on Facebook on January 16, 2025, Afrifa-Mensah wrote, ", who worked for Exton Cubic, the company that was close to acquiring Nhyinahin Bauxite, is the new CEO PMMC?" Meanwhile, 's appointment which took effect on January 16, 2025, tasks him with the establishment of the Ghana Gold Board (GoldBod), a key promise in the National Democratic Congress (NDC) 2024 manifesto.