The market share of Carlsberg Bulgaria AD, which operates local brewers Shumensko Pivo and Pirinsko Pivo, has increased from 10% in early 2004 to 19% at present, executive director Alexander Grancharov said, adding that he has received assurances from the Danish headquarters of the parent company that the Bulgarian subsidiaries will ingest between 5 mln and 10 mln euro in investment.