Company // Management

CABB’s leadership

The management of CABB possesses extensive experience in the chemical industry acquired over many years.

Valerie Diele-Braun


Valerie Diele-Braun has been leading the CABB Group as CEO since August 27, 2018. Previously she was a member of the executive board at Swiss-based chemical producer Achroma with responsibility for packaing and specialty papers as well as coating, adhesives and sealants.

From her earlier positions at DSM, Givaudan and as a management consultant, she has comprehensive experience in  specialty chemicals.

Ulrich Siemssen


Ulrich Siemssen has been the CFO of CABB since September 2015. Ulrich Siemssen brings with him extensive financial and international management experience. After holding a number of financial roles at Procter & Gamble, he joined Permira in 2000 where he, among other assignments, helped establish the company’s subsidiary in Tokyo, Japan, and became a principal in 2007.

Dr. Joachim Dohm

SVP Corporate Development

Carsten Wörner

Managing Director CABB GmbH & General Manager BU Acetyls

Dr. Thomas Eizenhöfer

General Manager BU Custom Manufacturing