Bitcoin mining company Riot Platforms (RIOT) has modified its Bitcoin-collateralized loan agreement with Coinbase, The Energy Mag reported. It converted the existing variable interest rate, which was linked to the federal funds rate, to a fixed interest rate to mitigate interest rate fluctuation risk. The specific interest rate level was not disclosed. Additionally, it introduced a 'two consecutive days below threshold' rule as a standard for applying additional collateral requirements in the event of a Bitcoin price drop. In the first quarter, Riot Platforms sold 3,778 BTC, raising approximately $289.5 million.