The value of the output of Bulgaria's mining industry rose 21% to 2.8 billion levs ($1.8 billion/1.4 billion euro) in 2011, equal to nearly 4.0% of the country's GDP.
Despite the growth posted in 2011, the sector is yet to fully rebound to the pre-crisis levels, newspaper Capital (www.capital.bg) reported on Sunday, quoting data of the Bulgarian Mining and Geology Chamber.
The volume of mineral resources extracted last year increased to 91.95 million tones, short of the 102.6 million tonne mark set in 2008.
Especially encouraging is the recovery in the quarrying of building materials which has been hardest-hit by the economic crisis, the paper noted.
The country's mining sector output continues to be dominated by the extraction of coal and metal ores, accounting for 75% of the output volume.