SINGAPORE: Blank-cheque companies could revive Singapore’s languishing market for initial public offerings( IPOs) as stock exchanges from Mumbai to Seoul profit from blockbuster deals. Singapore Exchange Ltd( SGX) last week presented rules for the listing of special-purpose acquisition companies( SPACs) as it attempts to get a slice of what has become a worldwide frenzy.It is allowing SPACs to list under a rulebook that is lenient than initially envisioned and more in line with the framework in