In 1921 following a merger, The United Warsaw Breweries Haberbusch & Schiele Ltd. comes into being.
Post war, the losses of all Warsaw brewers were estimated at 5 million roubles in gold. In such a situation, the Management Board of “Haberbusch and Schiele” decided that mergers with smaller breweries would be required, in order to revitalize the ruined plants and the industry. Following extensive negotiations in 1921, the United Warsaw Breweries “Haberbusch & Schiele” Ltd. was formed. The new company included E. Reych, K. Machlejd and S. Jung breweries, as well as the Korona brewery. After the merger, the company had something like 600 thousand square feet of industrial property in Warsaw alone. In addition, it owned real estate in Białystok, Kalisz and Łódź. Transport consisted of 30 chilled railway wagons, some 25 trucks and about 100 dray horses.
The main objective of the operation was to significantly improve the quality of production, utilizing the old preserved and usable equipment and means of transport, while at the same reducing administrative costs. Any savings made, were to be invested in the expansion and modernization of production plants. The members of the board were: Kazimierz Ludwik Schiele (1860-1931) – President, Edward Schiele, Tadeusz Lampe, Antoni Reych, Seweryn Jung, Julian Machlejd, Jan Patzer, Wojciech Bogusławski, Henryk Oppenheim, Brunon Mrożewski. Total production was then 10% of the whole domestic beer production, second only to the Tychy and Okocim breweries.
In 1924, Gazeta Warszawska described the business model of the new company:
In the history of the brewing industry in Poland, one company has the right to stake its claim as one of the most popular, “United Warsaw Breweries Haberbusch & Schiele Ltd. in Warsaw”. The company is guided by the principle of what is known as ’horizontal development’, which consists of merging individual associations into one larger one, thus ensuring that the owners who join the union have the same amount of income as the capital they have invested in the company, and so, they can expand their business with minimal administrative costs”.