Bitmain led the cryptofinance technology producer's latest round at a reported valuation of almost $3bn, six times that of its series D.

US-based cryptofinance technology provider Circle has secured $110m in a series E round led by strategic partner Bitmain, a supplier of bitcoin mining systems, it disclosed yesterday.

The round valued Circle at almost $3bn according to Recode, and included IDG Capital, Breyer Capital, General Catalyst, Accel, Digital Currency Group, Pantera Capital, Blockchain Capital and Tusk Ventures.

Circle operates cryptocurrency investment, transfer and trading platforms intended to make the cryptotrading process easy and efficient. It revealed the funding alongside the launch…