Toshiba Corp expects 300-400 billion yen ($2.4-3.2 billion U.S.) in charges related to improper accounting in an expanding probe that is set to force Chief Executive Hisao Tanaka to step down, sources familiar with the matter said on Wednesday.
The Japanese conglomerate has hired a third-party committee to investigate past book-keeping practices which sources say led to profits being overstated by more than 170 billion yen. That's more than triple Toshiba's initial estimate of around 50 billion yen.
The charges include six years of overstated profits uncovered by the committee, as well as various writedowns, the people told Reuters.
The company has been unable to finalize its accounts for the past financial year and suspended its year-end dividend payout due to the investigation. It was not clear how much of the charges would be booked in the last year. Its net income in the last fiscal year through March 2014 was 51 billion yen.
Other sources with knowledge of the probe have said investigators were looking into the role that top officials played in the irregularities, focusing on whether they had knowingly encouraged wrongdoing. The committee is expected to release its findings next week.
The scandal is a reminder that Japan is still in the early stages of a campaign backed by Prime Minister Shinzo Abe to improve corporate governance. Toshiba's shares have slumped around 27% in Tokyo since April when the company first disclosed irregularities in its books.
