2016

Separation of VTCH

• The company became an independent entity while maintaining the efficiency due to tight relations with remaining members of Z-Group Steel Holding

1997

VTCH purchased by Z-Group

• Z-Group acquired VTCH and integrated it into the steel producing holding, together with steel mills in Veselí and Hrádek

1989 - 1994

VTCH after the Velvet revolution

• The national company “Valcovny trub" has been transformed and sold to private investors

1949 - 1989

VTCH during the early period of socialism

• Modernisation of the production and portfolio took place and continued until the 1970
• VTCH became a significant supplier of seamless tubes for the post-war Europe
• VTCH has been tasked to manufacture the entire steel structure for Czechoslovak hall at EXPO 58 (obrazek 56)
• From 1970 further innovation allowed production of highest-grade high-alloy pipes and pipes for use in nuclear powerplants

1945 - 1948

VTCH after the WW II.

• The factory has never been attacked or damaged during the fights, so the production could continue without interruptions
• The factory has been nationalized and taken over by appointed management on May 12^th 1945
• Further integration into a state-run conglomerate of steel-producing companies has followed

1938 - 1945

VCTH during WW II.

• The core company and subsidiaries has been merged into one corporation
• Manufacturing focus shifted towards military production due to war requirements
• The plant has undergone overall modernization to increase overall capacity of production

1918 - 1938

VTCH between World Wars

• Military production has been terminated
• The headquarters of the company moved from Vienna to Chomutov, while subsidiaries have been established in Austria and other European countries
• The company founded a first cartel agreement with other Czechoslovak producers

1914 - 1918

VTCH during WW I.

• Factory has been placed under military oversight shifting the manufacturing focus on artillery shells and other military production
• First women joined factory’s workforce

1898 - 1914

Early years of production of VTCH

• Focus on growth of the factory by acquisition of new machines, allowing for broadening of the offer
• Focus on thick-walled pipes for production of canons for the army and navy of the Austro-Hungarian monarchy

1887 - 1898

Establishment of VTCH

• Establishment of the Mannemsann seamless pipes production in Chomutov
• Brothers Reinhard and Max Mannesmann invented and patented multiple processes allowing for seamless pipes production
  • Piercing mill with oblique rolling mechanism
  • Hand rolling process on Pilger mill

1870

Establishment of steel mill in Chomutov

The newly established company has purchased several ore mines and steel mill factories in the region with further acquisitions in later years