German supplier of dyes, auxiliaries and services for the textile and leather industries Dystar has appointed Mark Bye has as president and chief executive officer (CEO), effective January 1. He will replace Phil Norment and Dr Rudolf Strobl of Platinum Equity—Dystar’s parent company—who are currently DyStar’s CEO and deputy CEO respectively.

Most recently Mr Bye was group vice president Gases and Equipment at US-based company Air Products and Chemicals, Inc.