Manufacturing sales increased 5.4% on the month in July, but mining sales were down 1%, the data showed.
By segment, sales of intermediate goods rose 7.8% in July from a month earlier, while sales of consumer and durable goods each increased by 5.9% on the month. Capital goods sales were up 3%, but energy sales edged down 0.2%.
On an annual basis, industrial sales rose 8.8% in July, supported by a 9.2% increase in manufacturing sales. Mining sales declined 1.8% year-on-year.
In the first seven months of 2013, Romanian industrial sales rose 4.7% on the year, fueled by a 5% increase in the manufacturing sector.