The transfer is, however, subject to a public auction of the shares and regulatory review and approval, said the sources, who declined to be identified as they were not authorized to speak to media. HSBC has deployed billions of dollars in China in the last few years as part of an Asia pivot, boosting its market share across banking, insurance and securities businesses in the country's $57 trillion financial sector. Global Business and Financial News, Stock Quotes, and Market Data and Analysis