provide me a list of companies that are volatile and would be suitable for this assignment cite your sources eg annual report:

write a report to demonstrate your understanding of derivatives, with analytical skills and integrative thinking, to evaluate relevant financial risk exposure and to construct proper trading strategies for the construction of optimal portfolio$($s$).$

You may choose any company in HK or overseas countries, check its annual reports $($for the last $3$ financial years$)$ and identify its current and potential financial risk exposure. Based on the size and nature of the exposure, construct and explain proper trading strategies, using futures, forwards, options, and$/$or swaps to mitigate the risk$($s$)$ and, therefore, optimize its assets and$/$or liabilities structures.