Cryptocurrency exchange OKX said on Monday it would offer instant Singapore dollar-denominated deposits and withdrawals to customers in the city-state, taking a step to deeper integration with Singapore's traditional financial system as trading and interest in cryptocurrencies surge. The funds transfer service will be facilitated by Singapore's biggest bank DBS Group and done via the country's PayNow and Fast and Secure Transfers (FAST) payment services, OKX said in a statement. Interest in cryptocurrencies has surged following Donald Trump's U.S. presidential election victory, on the view that friendlier regulation under his administration could usher in a new boom for all corners of the asset class.