Keith replaces Brett Richards as Chairman, who remains on the Board as a Director.
https://www.gurufocus.com/news/630210/zenyatta-announces-the-appointment-of-keith-morrison-to-the-team-as-director-and-chairman
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Brett is still on board, just not chairman. I assume this appointment will make the board stronger in general. Hopefully great minds think alike here. With new uses for graphene every day Zen's time to shine will come.
Ringer