On October 1, 1925, the Trust of the state Uzbek-Kyrgyz coal industry Ferugol began its activity, which, by a decree of the Supreme Council of the National Economy of the USSR on October 1, 1927, was reorganized into the trust Sredazugol for the extraction, processing and marketing of coal, as well as clay, brick, lime, alabaster.
Charter of the trust Ferugol and regulations on it (1925), minutes of meetings of the Board of the trust Ferugol; resolution of the Supreme Economic Council of the USSR on the reorganization of the Ferugol trust into Sredazugol (1927), the charter of the Sredazugol trust (1927).
Decrees, orders, circulars of the Supreme Economic Council of the National Economy and the STO of the USSR and the Board of the Sredazugol trust on the preparation of production programs and five-year plans for the extraction and sale of coal; protocols of technical meetings of the Sredazugol trust, meetings under the Office of the Authorized Council of Labor and Defense of the USSR in Central Asia on the consideration of plans for the work of the coal industry.
Production parade grounds and reports on the progress of work on enterprises; reviews and information of the Sredazugol trust on production indicators for the coal industry of Central Asia (1927-1928).
Minutes of the meetings of the association for trade in products of coal enterprises of Uzbekistan and Kyrgyzstan.
