The development of mdexx GmbH
- 1961
- The „Bremer Werk“ of the Siemens AG is founded on the area of the former „Lloyd Motorenwerke“ (car factory) as a "prolonged workbench" of two Berlin factories („Dynamowerk“ and „Schaltwerk“)
- 1966
- The production of small transformers is shifted from Nuremberg to Bremen
- 1967
- The concentration of the production of fans from different locations in the plant now called „Bremer Werk" starts
- 1969
- The „Bremer Werk" of the Siemens AG gets independent as the European manufacturing facility for fans and transformers up to 2000 kVA
- 1991
- The separate manufacturing and marketing activities are brought together, a business segment for wound components and fans arises
- 1994
- MD sets up a production in Trutnov for serial and standard products
- 2000
- The logistics for standard products < 35 kg is submitted to the delivering center Amberg (LZA) step wise
- 2004
- mdexx Magnetronic Devices was created on 1st October 2004 from what had been the Siemens AG Magnetronic Devices Division.
- 2004
- Start of assembling fans in the factory in Suzhou (CN) of Siemens Electrical Apparatus Ltd.
- 2006
- Beginning of assembling reactors and transformers at the new location in Tianjin (CN)
- 2007
- Start of production of transformers and reactors in Tianjin (CN)
- 2009
- Siemens is selling the mdexx Magnetronic Devices business to a consortium of investors from CGS Management (Switzerland), CRG Capital (USA/Austria) and the mdexx management
- 2009
- China: Combination of fan and transformer manufacturing at the Tianjin location
