https://www.reuters.com/article/us-toshiba-accounting/toshiba-prepares-to-formalize-chips-sale-even-as-rejected-suitor-steps-up-legal-action-idUSKCN1BW08R >Japan's Toshiba Corp is expected to formalize the sale of its prized memory chip unit on Thursday to a group led by U.S. private equity firm Bain Capital, even as jilted suitor and joint venture partner Western Digital took fresh legal action.