Ghosn had been already indicted for underreporting his pay for the five years through fiscal 2014.
Motonari Otsuru confirmed that Ghosn had been indicted on the fresh allegations and said he would "shortly request his release on bail".
His detention for suspected breach of trust was set to end later Friday and chances he might be allowed out on bail remained uncertain. Ghosn remains CEO of Renault.
If the bail application is rejected, Ghosn will spend at least another two months in jail, a detention period that can then be extended by the court for a month at a time.
The Renault meeting comes two days after Ghosn made his first court appearance over alleged financial impropriety during his years as head of the carmaker's alliance partner Nissan. "In all of my efforts on behalf of the company, I have acted honorably, legally and with the knowledge and approval of the appropriate executives inside the company".
One of the most recognisable foreign executives in Japan, Ghosn was led into Tokyo District Court in handcuffs and with a rope around his waist and was noticeably thinner. It declared that no fraud was found in 2017-2018 but it is still examining previous years.
Kitamura said he expects Ghosn and Kelly to be tried together on the two charges of understating income, and that he will work closely with Ghosn's legal team.
"I am pleading with the Japanese authorities to provide us with any information at all about my husband's health. We are fearful and very anxious his recovery will be complicated while he continues to endure such harsh conditions and unfair treatment", it said.
Ghosn has denied all of the allegations against him. Such visits were canceled Thursday but resumed Friday.
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Visits from lawyers, family and friends are strictly controlled by prosecutors in Japan, making it hard for suspects to establish a defense or give their side of the story to the media.
At the court, Ghosn said his actions were backed by managers inside the company as well as external lawyers.
Ghosn has been interrogated daily but now will only be questioned with his consent, Kukimoto said.
A prosecutor's office spokesperson told AFP that the charges against Ghosn carried a maximum prison sentence of 15 years.
Ghosn is also accused of shifting approximately 1.85 billion yen in investment losses he suffered himself to Nissan in October 2008.
Sixty-four-year-old Ghosn said he is innocent, and his lawyer has said he will seek the former chairman's release on bail.
Before his sudden downfall, Ghosn was a respected figure in the global auto industry, having rescued the Japanese firm from near-bankruptcy, building its sales operations and profits and pioneering ecological vehicles.
Nissan also faces an indictment over the latest compensation reporting issue, said the person, who spoke on condition of anonymity due to the sensitivity of the issue.
Another accusation - that he rolled personal investment losses onto Nissan - came to no cost to the company, Ghosn said.