Stablecoins are poised to become a major cross-border payment tool that would benefit issuers in Hong Kong and mainland Chinese firms expanding overseas, according to industry insiders, as the city and the US push forward regulation of the popular tokens.A stablecoin is a type of cryptocurrency that maintains a fixed value by being pegged to a reference asset, typically fiat currencies such as the US dollar.“I believe stablecoins will become the next-generation payment system – that is beyond...