Coffee exports are estimated to have fallen 4.4% in the first 11 months of this year from a year earlier to 1.36 million tonnes, equal to 22.67 million 60-kg bags, the General Statistics Office said in a report on Monday.
Coffee export revenue for Vietnam, the world's biggest producer of the robusta bean, will likely show a 12.6% increase to $2.6 billion in the 11-month period, the report said.
The country's coffee shipments in November are estimated at 78,000 tonnes valued at $181 million, it said.
Rice exports in the first 11 months of this year from Vietnam were forecast to have risen 0.8% from a year earlier to 5.7 million tonnes.
Revenue from rice exports in the period was expected to rise 7.3% to $3.04 billion.
November rice exports from Vietnam, one of the world's largest shippers of the grain, totalled 563,000 tonnes, worth $297 million.
Vietnam's Jan-Nov crude oil exports were seen falling 31.4% from the same period last year to an estimated 3.01 million tonnes.
Crude oil export revenue in January to November is expected to rise 14.9% to $1.69 billion.
Oil product imports in the first 11 months of the year were estimated at around nine million tonnes, down 16.6% from the same period last year, and the value of product imports were expected to rise 31.2% to $4.6 billion.