Matthew Opoku Prempeh Questioned as Part of Probe Into Mathematical Sets Procurement, Other Issues
- Former minister Dr Matthew Opoku Prempeh has been questioned in connection with the procurement of mathematical sets
- The Deputy Attorney General, Justice Srem-Sai, gave updates on investigations into the former minister
- A $60 million deal for mathematical sets was awarded in 2019 by the Ministry of Education for distribution to Senior High School students
Former Energy and Education Minister Dr Matthew Opoku Prempeh has been questioned in connection with the procurement of mathematical sets under the Akufo-Addo administration.
The Deputy Attorney General, Justice Srem-Sai, told Joy News that Prempeh's involvement in the investigation in question does not mean the former minister is guilty of any crime.

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“He said he’s been going to NIB for a while now. Nobody knew until he said it publicly.”
“You will not be prosecuted unless there is evidence that you were complicit in some of the things you undertook."
Srem-Sai also noted that Prempeh is also being investigated in relation to other issues related to the Akufo-Addo administration.
Prempeh earlier disclosed that the National Intelligence Bureau had invited him for questioning.
On June 4, he told journalists the National Intelligence Bureau had invited him twice to assist with inquiries related to his time in office.
“As I speak to you now, I have been invited by the NIB on two different occasions to answer some questions from my time as Education Minister; some issues I don’t even remember. But the records are there to show.”
About the mathematical sets procurement
A $60 million deal for mathematical sets was awarded in 2019 by the Ministry of Education for distribution to Senior High School students.
The single-sourced procurement was done by Bluegrass Group Ltd, the local agent for Cornfield Group Ltd, which is alleged to be a front for Sarah Mary Olufemi Adetola, wife of former Executive Secretary to the President, Nana Bediatuo Asante.
The Herald reported that the owner of the company reportedly hijacked the payment from the government, leading to his arrest by the National Investigations Bureau. No charges were filed.
Mahama administration chasing alleged corruption
The Mahama administration has initiated investigations into the activities of Akufo-Addo appointees.
On June 4, President John Mahama disclosed that the Attorney-General is building 33 cases of corruption and related offences against former government appointees.
These cases reportedly stem from investigations conducted by the Operation Recover All Loot (ORAL) preparatory committee into complaints against the Nana Akufo-Addo administration.
GBC reported that Mahama said court proceedings on the 33 cases would begin soon.
The president also said that his administration had created special investigative teams to investigate each of them.
The ORAL preparatory committee claimed it had identified $21.19 billion in potential recoveries from looted state assets and undervalued land sales.
At the handover of the committee’s report on February 2 in Accra, the committee held the view that some cases could boost Ghana’s financial standing.

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These cases include major corruption scandals involving the National Cathedral project, Power Distribution Services (PDS), and the Saltpond decommissioning project, among others.
ORAL’s findings, for example, indicate that prime state lands were sold at very low prices, leading to an estimated revenue loss of $702.8 million.
Attempts to probe Akufo-Addo appointees
YEN.com.gh reported that the MP for Assin South, John Ntim Fordjour's home was raided by National Investigations Bureau personnel.
National Security also raided the residence of former Bank of Ghana Governor, Dr. Ernest Addison, during a raid on Wednesday, March 19, 2025.
Former Finance Minister Ken Ofori-Atta's home was also raided by a national security team. The former minister has since sued National Security over the incident.
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Proofreading by Samuel Gitonga, copy editor at YEN.com.gh.
Source: YEN.com.gh