Southwest Securities International Securities Limited, together with its subsidiaries, provides various financial services in Hong Kong. It operates through Brokerage and Margin Financing, Corporate Finance, Asset Management, and Proprietary Trading and Other segments. The company acts as a financial adviser for mergers and acquisitions, reorganizations, general offers, acquisition financing, and private equity, as well as a compliance and independent financial adviser. It also offers debt products, including investment-grade, high-yield, convertible, preferred stock, and panda bonds; engages in agency trading of securities, futures, and options; and provides insurance brokerage, margin financing, financial products, and one-stop integrated investment and financing services for high-net-worth clients.