Swiss energy storage group Leclanché has been granted a fourth and final temporary exemption from publishing its annual report for 2025 ― while trading of shares in the troubled firm remains suspended.

Batteries International revealed in August that regulators had granted what was then Leclanché’s third extension request, as the company said it was not yet able to show its ability to operate as a going concern through at least June 2027.

On September 10, SIX Exchange Regulation, which regulates and monitors exchange participants and issuers on the Swiss Stock Exchange, said it had granted Leclanché’s latest exemption request ― stressing the exemption was the “final” one and giving the firm until September 30 “at the latest” to file the delayed report. 

Leclanché said it needed more time to demonstrate it is a going concern, at least until June 2027, but remained confident of being able to do so.

In June 2025, Leclanché announced it was pushing ahead with efforts “to achieve and maintain a positive equity position” and to demonstrate the firm’s ability to continue as a going concern through at least June 2026.

The company had said previously that it was in a situation of negative equity as of the end of 2024.