In 2011, GAZ-SYSTEM S.A. finished the construction of the Włocławek-Gdynia gas pipeline and a gas compressor station in Goleniów and Jarosław. The company also opened a new Polish-Czech connection enabling the transmission of ca. 0.5 billion cubic metres of gas per year.
In 2012, GAZ-SYSTEM S.A. opened the Jeleniów-Dziwiszów pipeline as part of the expansion of the transmission system in Lower Silesia.
In June 2014, GAZ-SYSTEM S.A. obtained a use permit for the Świnoujście-Szczecin pipeline.
In November 2014, a use permit was issued for the Gustorzyn-Odolanów pipeline.
In May 2015, a use permit was issued for the Rembelszczyzna-Gustorzyn pipeline and for the Lasów-Jeleniów pipeline, which was constructed under the “Modernisation of the Transmission System in Lower Silesia” project aimed at improving its functionality and ensuring optimum use of the Poland-Germany connection.
At the end of July 2015, a use permit was issued for the Szczecin-Gdańsk high pressure gas pipeline.
At the end of September 2015, a use permit was issued for the Szczecin-Lwówek high pressure gas pipeline.