He noted that the $600m Goldman earned for its work was “several times higher” than industry norms.
The firm remains under investigation in the other countries, including the US, and is also facing lawsuits from investors.
What does Goldman say?
Goldman says the Malaysia charges are “misdirected”.
It says the firm’s compliance officers were deceived about aspects of the deal, including the role of Malaysian financier Jho Low, whom the bank had previously rejected as a client.
But news reports have described the firm’s former chief executive, Lloyd Blankfein, meeting Mr Low and former Malaysian Prime Minister Najib Razak.
Mr Leissner, Goldman’s South East Asia chairman until he left the firm in 2016, has said the decision to hide information from Goldman’s compliance officers was “very much in line” with company culture.
What penalties could Goldman face?
Malaysian authorities are seeking fines of more than $3bn.
Goldman has warned investors of the risk of “significant” penalties and increased the money set aside for legal liabilities to $1.8bn.
As its legal costs surge, it has also said it will withhold millions due to some of its top executives, including Mr Blankfein, pending the outcome of the probes.