Industrial sales increased 2.7% last month, after a 4.3% decline in April. Sales in the mining sector advanced 7.4% on the month in May, while manufacturing sales were up 2.5%, the data showed.

By segment, energy sales rose 20.1% month-on-month, while sales of intermediate and consumer goods increased 1.9% and 1.6%, respectively. Sales of durable goods inched up 0.5% from the previous month, but capital goods sales declined 0.1%.

On an annual basis, industrial sales rose 10.9% in May, again fueled by higher sales in all sectors.

Mining sales increased 24.1% in May compared with the same month of 2013, while manufacturing sales were up 10.4% on the year.

In the first five months of 2014, Romanian industrial sales rose 11.6% on the year, INS data showed.