Toshiba Corp. secured shareholder approval Tuesday for the sale of its chip unit to a Japanese-U.S.-South Korean consortium but kept mum about what alternatives to take if it fails to complete the deal before the end-of-March deadline to clear its excessive debt.

The struggling conglomerate also won approval of the lineup for its board of directors at the extraordinary shareholders meeting, as well as its earnings results for fiscal 2016 after failing to report the results at its ordinary shareholders meeting in June due to the refusal by its auditor to sign off on the final numbers.

Toshiba last month picked a group led by U.S. investment fund Bain Capital as its buyer for Toshiba Memory Corp., the world's second-largest maker of NAND flash memory chips used in smartphones and PCs, after a chaotic monthslong bidding process.