The ex-Nissan chief was arrested in Japan in November 2018 on financial misconduct charges and spent 130 days in detention, before he dramatically jumped bail and smuggled himself out of the country late last year.
In January, the 66-year-old businessman appeared in public for the first time in Lebanon, claiming he was a victim of a plot by Nissan and Japanese officials.
On Tuesday, he held a press conference to launch new business courses at the Holy Spirit University of Kaslik (USEK), north of Beirut.
But he refused to answer any questions about allegations against him, or his former business partner Greg Kelly who pleaded not guilty on September 15 as his trial opened in Japan.
"I am not going to deviate this conference from its centre and the centre is USEK," said the tanned Brazilian-born businessman, who also holds French and Lebanese nationalities.
Instead he spoke of a new executive management programme, as well as two other entrepreneurship and information technology courses, which he said aimed at "serving the country".
Read also: Ghosn says he's 'aiding' those who helped him flee to Lebanon
An organiser said students would receive one consultancy session with Ghosn, and a certificate at the end of their studies signed by him.
Lebanon is mired in its worst economic crisis in decades, and still reeling from a monster blast at the capital's port that killed more than 190 people and ravaged large parts of Beirut.
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