Yen Yen Tan joined the Board of Barry Callebaut in 2020.

She has more than ten years of experience as an independent director and a career spanning more than 30 years as a senior executive in multinational technology and telecommunications companies based in Singapore and Europe. She is currently a director of ams OSRAM AG, OCBC Bank, Jardine Cycle & Carriage Ltd, InCorp Global (non-public) and EdgeConnex (non- public). She was President Asia Pacific for the Vodafone Group. Prior to this, she held senior management and regional roles with SAS Institute, Oracle Asia Pacific and Hewlett-Packard Singapore (HP). Yen Yen Tan plays an active role in Singapore's InfoComm industry, where she mentors early-stage start-ups through her fund, TNF Ventures. She also volunteers and holds several independent non-profit advisory positions to support causes close to her heart, such as STEM education (science, technology, engineering and mathematics), sports excellence and gender diversity.

In recognition of her contributions and distinguished services, she was appointed a Justice of the Peace by the President of the Republic of Singapore in 2018 and awarded the prestigious Public Service Medal PBM in 2020.

Yen Yen Tan holds a degree in Computer Science from the National University of Singapore and an Executive MBA from the Helsinki School of Economics.