Oxford-based NIOX Group unveils board changes

NIOX Group, which designs and sells medical devices for asthma diagnosis and management, has announced a series of board changes, including a new CEO and finance chief.

Jonathan Emms, currently the chief operating officer at the Oxford-based company, has been appointed chief executive officer with immediate effect, NIOX said in a stock market statement.

Meanwhile, Sarah Duncan, currently the group financial controller and company secretary, will succeed Michael Roller as chief financial officer, who has indicated his intention to retire with effect from this year's AGM, expected on May 14.

Roller will remain available as a consultant, as and when required, the firm added.

In addition, Ian Johnson, currently executive chairman, will move to become non-executive chairman - also with effect from this year's AGM.

Johnson said: "The current executive team have worked together since the beginning of 2020 and have led the successful turnaround of the business.

"Jonathan's and Sarah's promotions from within the business are well deserved and provide stability and continuity. I congratulate both and wish them every success."

Duncan qualified as a Chartered Accountant with PwC and joined NIOX as group finance manager in 2018, becoming company secretary in November 2020. She was promoted to her current role in April, 2024.