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Sharp Corp's list of liabilities that prompted Taiwan's Foxconn to suspend signing a takeover deal was an unverified study of worst-case scenario risks, rather than liabilities requiring disclosure, a source briefed on the matter said. The list, sent to Foxconn on Wednesday, included previously undisclosed potential liabilities worth around 300 billion yen ($2.6 billion), prompting Foxconn founder and billionaire Terry Gou to hold off signing the estimated $5.8 billion deal, separate sources have said. Reuters was unable to ascertain why the list was sent to Foxconn, formally known as Hon Hai Precision Industry Co .

Japan's Toshiba Corp plans to sell part of its chip business as it aims to recover from a $1.3 billion accounting scandal, three people familiar with the matter told Reuters on Saturday. The electronics conglomerate has started accepting bids, with early interest shown by the Development Bank of Japan Inc, said the sources, who declined to be identified because they are not authorized to talk to the media. The state-owned bank has already invested in Seiko Holdings Corp's semiconductor operations.

By Paul Carsten and Engen Tham BEIJING/SHANGHAI (Reuters) – Uber Technologies Inc's China arm has closed its $1 billion fundraising round early, according to two people with knowledge of the matter, with investors still hopeful for the U.S.-based ride service despite strong domestic competition. Investors in Uber's Chinese unit include Internet giant Baidu Inc, China CITIC Bank Corp Ltd and China Life Insurance Co Ltd, among others, said one of the people, requesting anonymity because they were not authorized to discuss the matter publicly. Chinese financial conglomerate Ping An Group's investment arm and Hillhouse Capital, which has a stake in the main U.S.-based Uber business, also took part, the person said.

Software security company Symantec Corp is in talks to sell its Veritas data storage business to private equity firm Carlyle Group LP , a person familiar with the matter said on Tuesday. Bloomberg News reported earlier that Symantec was nearing a deal to sell Veritas to Carlyle for between $7 billion and $8 billion, citing people with knowledge of the matter.

Chipmaker Advanced Micro Devices Inc is at the initial stage of reviewing whether to split itself in two or spin off a business, seeking to reverse its fortunes and take on rival Intel Corp, according to three people familiar with the matter. The review highlights Chief Executive Lisa Su's determination to consider every possible option to turn the company around. Su, however, who took over as CEO last October, judged that there is merit for the company to at least consider such a possibility again, the people added.

By Yasmeen Abutaleb SAN FRANCISCO (Reuters) – Twitter Inc Chief Executive Officer Dick Costolo abruptly announced he was stepping down on Thursday amid increasing scrutiny of the company's slow user growth and inability to attract advertisers at the same rate as its competitors. Costolo will be replaced by co-founder Jack Dorsey on an interim basis. According to a source familiar with the matter, it was Costolo's decision to leave, and Costolo said he brought it up with the board last year as it began talking about succession planning.