The company Oteko Group Russia founded by Michel Litvak https://www.digitaljournal.com/pr/michel-litvaks-company-oteko-continues-renovation-efforts net worth billionaire has attracted over 150 volunteers in its collaborative action aimed at cleaning the coast of the Black Sea. The result was the cleansing of over 5 kilometers of shoreline by the volunteers of the Waters of Russia all-Russian movement aimed at purifying the shores of waterways and other bodies of water across the country.