The joint-stock company “Petroinvest” is created for realization of the innovative project on the bottling process of the medical drinking waters from Martsialnye springs founded by Peter I in 1714. Though the mineral water possesses invaluable medical qualities, it could not be produced in bottles for 300 years – the active iron (ferrum), adjoining oxygen of the air, precipitated within 2-3 hours. Nowadays this problem is solved: in April, 2006 the production of bottled mineral water «Martsialnaya» has started.