Vietnam's export revenue to China saw a decrease of 21.02 percent over the previous month and 13.91 percent year-on-year, said the department.
Computer and electronics topped the list of Vietnam's major exported items to China with turnover of $136.72 million, accounting for 13.5 percent of Vietnam's total export turnover to the market during the period.
Cassava and its products sat the second place with $96.26 million, accounting for 9.5 percent of the country's total export revenue to China in the first month of 2014.
Remarkable declines were witnessed in Vietnam's farm, fishery exports in January to China including rubber, rice, cashew nuts, tea, and coffee among others, according to Vietnam Customs.