Coinbase says it has won conditional approval from US banking regulators for a national trust company charter, which could let it issue stablecoins and more (Olga Kharif/Bloomberg)

Olga Kharif / Bloomberg: Coinbase says it has won conditional approval from US banking regulators for a national trust company charter, which could let it issue stablecoins and more — Coinbase Global Inc., the largest US cryptocurrency exchange, said it has won conditional approval from banking regulators …