The Administrator of the Minerals Development Fund (MDF), Dr Hanna Louisa Bisiw-Kotei, has leveled serious allegations against Owusu Mensah, the (NPP) Constituency Chairman for Manso Nkwanta, accusing him of involvement in illegal mining, commonly known as "galamsey." Speaking on JoyNews on June 29, 2025, Dr Bisiw-Kotei claimed that Mensah is deeply involved in galamsey activities at a site she alleges belongs to him, located perilously close to a school in one of the communities recently visited by the anti-galamsey task force. "The heap of this illegal mining thing that I'm saying.

I'm looking for the name of the person who is actually digging around the school.

He's the NPP chairman for Manso Nkwanta, Chairman Owusu Mensah," she stated.

When pressed by the host regarding the veracity of her claims, Dr Bisiw-Kotei expressed absolute certainty.