What does the company Navibulgar do
Navibulgar is a Bulgarian shipping company, the largest in the country, with a fleet of 70 vessels: 46 bulk carriers, 9 container vessels, 5 tanker and chemical vessels, and 10 combined tonnage vessels, including their new 30,700-tonne ship, which became a part of their fleet in June 2012.
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### Instruction: What does the company Navibulgar do
### Input: 
### Response: Navibulgar is a Bulgarian shipping company, the largest in the country, with a fleet of 70 vessels: 46 bulk carriers, 9 container vessels, 5 tanker and chemical vessels, and 10 combined tonnage vessels, including their new 30,700-tonne ship, which became a part of their fleet in June 2012.