Ripple Labs, a US blockchain payments company, has stepped up testing of its stablecoin RLUSD. Ripple Stablecoin Tracker data shows that Ripple conducted two tests simultaneously, which involved minting and transferring money on the XRP Ledger protocol. This is the first RLUSD test revealed so far this month. Over the past few months, Ripple Labs has been testing RLUSD in an attempt to join the rapidly growing stablecoin ecosystem. The newly minted XRP Ledger Index is 146, containing 9,999,700 RLUSD.