Chicago Board of Trade soyabean futures firmed on Tuesday for the first time in four sessions in a moderate short-covering rebound from the prior session's steep losses, traders said.

Futures recovered from multi-month lows posted on Monday amid fears that the spread of coronavirus beyond China would dent global economic growth or stall export shipments of US beans.

Traders are still waiting for large US soya purchases by China following its Phase 1 trade deal with the United States.