Johannesburg, South Africa – AECI Limited has announced the resignation of its Chief Executive Officer (CEO), Mr. Holger Riemensperger, effective Wednesday, 15 October 2025. The news sent shockwaves through the market, with AECI's stock price plummeting almost 9% following the announcement.
According to an official statement from AECI, Mr. Riemensperger's departure is due to personal and family-related reasons. During his time as CEO, Riemensperger spearheaded a significant turnaround for the company, focusing on portfolio simplification, operational efficiency improvements, cost savings, and debt reduction. Ms. Philisiwe Sibiya, Chairperson of the Board, acknowledged his contribution, highlighting the company's strong performance in the first half of 2025, including a 132% increase in headline earnings per share and the resumption of H1 dividend payments.
"During his tenure, Mr. Riemensperger delivered on the strategy with marked successes in portfolio simplification, improving operational efficiencies, driving both cost savings and debt reduction, while increasing EBITDA," said Ms. Sibiya.
To ensure a seamless transition, AECI has appointed Mr. Dean Murray, Executive Vice President of AECI Chemicals, as the interim CEO. Mr. Murray brings over 18 years of leadership experience within AECI and the chemicals industry to the role.
AECI has been focusing on its core businesses, AECI Mining and AECI Chemicals, and recently completed the disposal of Schirm USA. The company's international operations have also contributed significantly to its recent earnings.
What Does This Mean for AECI's Future?
The sudden departure of a CEO is always a significant event for any company. While Mr. Riemensperger's turnaround efforts were widely praised, the market's reaction indicates some uncertainty about AECI's future direction. Investors will be closely watching Mr. Murray's leadership as interim CEO and the company's progress in finding a permanent replacement. The focus on core businesses and continued growth in international operations will be key to maintaining momentum.
Key Takeaways:
- Holger Riemensperger resigns as AECI CEO due to personal reasons.
- Dean Murray appointed as interim CEO.
- AECI focuses on core mining and chemicals businesses.
- Stock price dropped following the announcement.