Coffee trading in Vietnam remained muted with the country in 15 days of social distancing to fight the coronavirus, while traders in Indonesia were awaiting new beans coming in May.

"Not just Vietnam, the pandemic has prompted governments around the world to impose severe curbs on movement in a bid to stem the spread of the virus," said a trader based in the Central Highlands, Vietnam's coffee belt. "Basically, the virus has disrupted everything in everywhere."

Some traders said they couldn't fulfil their signed contracts because of supply disruption.

"Roasters and traders are already stocked up as they anticipated supply disruption because of the virus. But farmers refused to release beans at low prices in March so there are still some orders I can't fulfil," another trader based in the same region said.

"Hopefully activities will resume as soon as Indonesia is about to release fresh beans next month."