Reuters reported this month that Toshiba was seeking at least a partial exit from ventures in Britain and India, a blow to both countries’ nuclear plans.
“Looking at today’s numbers it is difficult to say that the acquisition was the correct choice,” Tsunakawa said.
In an earlier, separate statement, Toshiba outlined concerns at Westinghouse.
Internal reports, Toshiba said, suggested controls at Westinghouse had been “insufficient” and it needed to look into whether senior managers at Westinghouse exerted “inappropriate pressure” during discussions over the 2015 U.S. deal to buy the company at the heart of its cost overruns, it said.
“We judged that it would take about a month for external lawyers … to conduct these further probes and for the independent auditors to review the results,” Toshiba said.
Executives later declined to elaborate on the concerns. Toshiba said it expected to book a 499.9 billion yen ($4.4 billion) net loss for the nine months to December, and a 390 billion yen net loss for the full year.
It also ended 2016 with negative shareholder equity due to the 712.5 billion yen nuclear writedown – a charge that was first flagged in December last year.
Toshiba is due to meet its creditor banks on Wednesday.
($1=113.42 yen)
