Chairman Wontumi Sentenced to 20 Years.

A Timeline of the Samreboi Illegal Mining Case.

The conviction and sentencing of Bernard Antwi Boasiako, popularly known as Chairman Wontumi, marks one of the most closely followed legal proceedings involving illegal mining in Ghana. The case attracted nationwide attention because of Wontumi's political profile and the broader national debate over illegal mining, commonly referred to as galamsey.

How did Chairman Wontumi's case end in a 20-year sentence?

The legal process began in April 2025 when security agencies raided a mining concession in Samreboi. The operation resulted in multiple arrests and the seizure of excavators, firearms, and cash. Investigators alleged that mining activities had taken place without the required regulatory approvals, leading to criminal charges against Wontumi and Akonta Mining Limited.

Following investigations by the Criminal Investigations Department (CID) and the Economic and Organised Crime Office (EOCO), Wontumi was arraigned before the High Court in October 2025. He pleaded not guilty to all six charges. The court subsequently granted bail while the trial proceeded.

During the trial, the prosecution presented documentary and witness evidence, including testimony from officials of the Minerals Commission. After the prosecution closed its case, the defence argued that no prima facie case had been established. The court rejected that submission and ordered the defence to open its case.

Between May and June 2026, the defence called witnesses, including technical experts and former public officials. Once both sides had concluded their cases, the court received written legal submissions before reserving judgment.

On 20 July 2026, the Accra High Court delivered its judgment, convicting Wontumi on all six counts. The court imposed a 20-year custodial sentence together with a financial penalty expressed in penalty units. Following the judgment, Wontumi was taken into custody.

It is important to distinguish this conviction from other legal matters involving Wontumi. Separate proceedings relating to the Tano Nimiri Forest Reserve and an EXIM Bank matter remain before the courts. Those cases had not been determined at the time reflected in this infographic, and Wontumi has denied the allegations.

The case represents another significant milestone in Ghana's continuing efforts to strengthen enforcement against illegal mining and improve accountability within the extractive sector. Regardless of political affiliation, the proceedings highlight the importance of due process, judicial independence, and transparent enforcement of mining laws.

Join our WhatsApp group to receive data viz insights on Ghana and Africa directly: https://chat.whatsapp.com/JCqBvBWfqjILTxiaCqFhCx?mode=wwt