Client-centric Leadership and Expertise
CABB Group’s Executive Committee possesses unique professional experience: understanding customer partnerships, fine chemical expertise, corporate and small-company perspectives, and a track record of delivering growth.

Valerie Diele-BraunCEO
Valerie Diele-Braun has led the CABB Group as CEO since 2018. She has extensive experience in growth and transformation projects, in previous assignments at DSM, Givaudan and as a member of the board of Swiss chemical producer Archroma.

Markus SchürholzCFO
Markus joined CABB as its CFO in 2019. He held management positions in finance departments of international companies including Haniel Group, Escada AG and SAG Group over the past 25 years. Most recently, Markus was CFO of Landgard eG.

Tobias SchalowCOO, BU Custom Manufacturing
Tobias became Chief Operating Officer of the Custom Manufacturing business unit in 2020. He joined CABB in 2018 as head of the Program Management Office. Tobias contributed to strategic transformation programs in the chemical industry, previously at Linde and Booz & Company.

Carsten WörnerManaging Director, BU Acetyls
Carsten has led CABB’s acetyls business sine 2017. He held a variety of management positions at Hoechst and Celanese. Amongst other products, he was responsible for the worldwide acetic acid and anhydride product lines from Shanghai. Before joining CABB, Carsten served as Chief Sales Officer for Albis Plastic GmbH.
Site Leadership

Urs ZimmerliPratteln Site Manager
New to CABB in 2020, Urs spent the last 20 years leading operations and management teams in the fine and specialty chemical businesses of EMS, Archroma, Polygal and Borregaard.

Juha HiironenKokkola, Managing Director
Juha has been part of the Kokkola site’s manufacturing and operations team since 1987, prior to CABB’s acquisition of Kemfine.

Andree HenzeGersthofen, Site Manager
Andree has led the Gersthofen site since 2016 after a lengthy career in plant operations at Clariant and Hoechst.

Wolfgang SchickKnapsack, Site Manager
Wolfgang joined CABB in 2009 and is currently responsible for BU Acetyl’s global production network. He has 3 decades of experience in large scale production, with previous assignments at Hoechst and Clariant.

Jeff BlackJayhawk, President and Site Manager
Jeff has been part of Jayhawk’s team since 1989, serving in a variety of production and project assignments in the US and Europe, prior to his present role leading the Jayhawk site for CABB.