Hong Kong's Secretary for Financial Services and the Treasury, Hui Cheng-yu, said in the blog "Treasury Theory" that in terms of expanding the eligible asset classes, it is recommended to broaden the eligible asset classes, in line with the overall financial development strategy of the Finance and Treasury Bureau, to add carbon emission derivatives/emission allowances, insurance-linked securities, loans and private debt investments, and virtual assets, etc., so that transactions of such assets can also be exempted from profits tax.