President Jacob Zuma on Wednesday submitted a list showing he has no business interests, following widespread criticism that he had failed to declare assets for nearly a year after taking office.
Opposition parties want Zuma investigated, saying he has breached ethics laws that require senior government officials to disclose assets within 60 days of assuming office.
In a statement, Zuma's lawyer Michael Hulley said the president "does not hold any directorship, membership or shareholding in any company, either public or private, nor is he associated in any way therewith".
"The suggestions to the contrary are devoid of any truth and are regrettable," Hulley added.
A list of gifts, benefits and financial interests held or received by Zuma or his family had now been submitted to the secretary of cabinet. Hulley said Zuma had not received any gifts of "extraordinary monetary value".