Manufacturing production increased 8.3% on the year in data adjusted for the number of working days and seasonal factors.
Output in the mining sector rose 6.9%, while energy production was up 5.4% from January-June 2010.
In June alone, the industrial production was up 3.2% compared with the same month a year ago, again fueled by increases in all sectors.
Mining output advanced 5.7% on the year in June, while production in the energy and manufacturing industries was up 5.2% and 2.8%.
Compared with May, the adjusted industrial output fell 2.2% in June, on decreases in all sectors.
Energy production was down 3% in June from the earlier month, while the output in the manufacturing and mining sectors dropped by 2.2% and by 1.7%, respectively.
In unadjusted data, Romanian industrial production fell 1.5% on the month in June, but was up 1% compared with the year-earlier month. In the first half, industrial output rose 7.5% on the year in unadjusted data.