Herkules SA, formerly Gastel Zurawie SA, is a Poland-based company engaged in the tower crane rental services. The Company's offer includes tower cranes of a lifting capacity to over 600 metric tons, hydraulic cranes and caterpillar cranes, as well as other building devices of such brands as Grove GMK, Liebherr and TEREX-COMEDIL. The Company is also distributor of new tower cranes of TEREX-COMEDIL in Poland. In addition, Herkules SA provides construction services in the telecommunication and wind energy sector, including design, assembly and installation of infrastructure systems and transportation services. It also manufactures precast concrete products. The Company operates three subsidiaries, including Gastel Hotele Sp z o o, Gastel Prefabrykacja SA, Przedsiebiorstwo Gospodarki Maszynami Budownictwa Budopol SA (PGMB Budopol) and Viatron SA.