Former Goldman Sachs Group Inc. banker Asante Berko is appealing a UK court decision to extradite him to the US, where he faces allegations of bribing Ghanaian officials during his time at the investment bank.

Berko is accused of collaborating with Ghanaian officials and others in a bribery scheme that benefited himself, the bank, and a Turkish energy company seeking to construct a power plant in Ghana.

Prosecutors argue that Berko should be extradited to face trial in the US.

During a recent London appeal hearing, Berko's legal team argued that the extradition order should be dismissed.

They contended that the charges did not constitute grounds for extradition, especially considering that most of the alleged acts occurred in London.

However, attorneys representing the US government argued in favour of extradition, claiming that Berko and other unnamed co-conspirators bribed Ghanaian officials with over $700,000.

They allege that the group arranged to be reimbursed for these bribes through fraudulent invoices issued to the energy company.

The reimbursements were then funnelled from Turkey, through US bank accounts, and ultimately to Ghana.

In addition to facing extradition, Berko was also sued by the Securities and Exchange Commission (SEC) in 2020 for the same conduct.

He settled the SEC's lawsuit by agreeing to pay more than $329,000 in fines without admitting or denying the allegations.

A spokesperson for Goldman Sachs did not immediately respond to a request for comment on the matter.