District of the city of Stalin. The village of Devnya. View of the soda factory. Meeting to mark the opening of the plant. Speakers: Minister of Heavy Industry T. Folov, USSR Ambassador to Bulgaria Yu. K. Prikhodov. Among those present, Chairman of the Council of Ministers of Bulgaria V. Cherenkov. Guests visiting the plant. The first batch of soda is sent from the plant. Workers perform the Bulgarian folk dance "Hvoro" on the territory of the plant.