Comprehensive maintenance at JSW S.A. “Pniówek” Coal Mine of surface and underground equipment and installations used for the production and conveyance of backfill materials, mining excavations, and the filling of dams with an explosion-proof mixture consisting of power‑plant waste (a by‑product) and mine water, optionally supplemented with anti‑pyrogenic agents, mine water, or wastes .............

Jastrzębska Spółka Węglowa S.A. z siedzibą w Jastrzębiu Zdroju, Zakład Wsparcia Produkcji