Timeline

2006 Consolidation of production and maintenance in line with the increase in productivity program PSP

2006 Capacity upgrade of the twin casting unit to 80,000 moto

2005 Natural gas injection at furnace A

2003 Slag granulation at blast furnace B

2003 Natural gas injection at furnace B

2003 Triple certification for EN 9001 Quality, EN 14001 Environment and OHSAS 18001 Operational Safety

2002 Exhaust gas recycling LEEP powder metal facility

2001 Slab continuous casting plant 1 (twin casting)

2000 Slab continuous casting plant 3

1997 production 5.2 million tons

1997 New partner structure
20% Mannesmannröhren-Werke AG
30% Vallourec & Mannesmann Tubes S.A.S
50% Thyssen Krupp Europe Steel AG

1997 New partner structure
50% Mannesmannröhren-Werke AG
50% Thyssen Krupp Europe Steel AG

1994 Production 4.5 million tons

1993 New partner structure
50% Mannesmannröhren-Werke AG
50% Krupp Hoesch Stahl AG

1990 Foundation of HKM with the parnters
50% Mannesmannröhren-Werke AG
50% Krupp Stahl AG

1990 Production 3.6 million tons

1984 New coking plant

1984 Round continuous casting plant 2

1982 Round continuous casting plant 1

1981 Blast furnace B

1973 Blast furnace A

1972 New Sintering plant

1967 Slab continuous casting plant 2

1967 Slab continuous casting plant 1

1966 LD steelworks S1

1965 Visit of Queen Elisabeth II from England

1964 First continuous arc casting plant in the world

1959 Coking plant

1950 Casting pit

1929 Sintering plant 1

1929 Blast furnaces 1 and 2

1929 Thomas steelworks

1914 Takeover by Mannesmannröhren-Werke AG

1909 Siemens-Martin steelworks of the Schulz-Knaudt family