Battery manufacturer BMZ Group has filed for insolvency for two of its key companies, BMZ Germany GmbH and BMZ Holding GmbH, after losing a major customer in the stationary energy storage segment. Both firms entered insolvency proceedings under self-administration, approved by the District Court of Aschaffenburg on 24 October, allowing existing management to oversee restructuring.
The company cited an “acute liquidity crisis and the need for restructuring following the loss of a major customer in the energy storage segment, as well as resulting legal disputes and cost burdens.” BMZ did not disclose the customer’s name but confirmed that BMZ Holding GmbH was also affected due to a guarantee commitment for the German subsidiary. Despite the insolvency, the group said operations would continue with the help of bridge financing from shareholders, while efforts are underway to spin off BMZ Germany’s operational business into a new structure.
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The BMZ Group, founded in 1994 in Karlstein am Main, is best known for producing lithium-ion battery packs for mobility and energy applications. Its customer list includes Daimler Buses, which sources next-generation “NMC 4” battery packs for the Mercedes-Benz eCitaro from BMZ Poland. The company emphasized that foreign subsidiaries—including those in Poland, the United States, China, Japan, France, and the United Kingdom—remain “operationally healthy and unaffected.”
In its restructuring, BMZ aims to refocus on technological core competencies, cost savings, and growth in industrial battery systems and customized energy storage solutions. While no details were provided on potential job impacts, the group employs more than 2,300 people worldwide. Among its notable shareholders is Susanne Klatten, a major German entrepreneur and heiress of the Quandt family, whose firm SKion GmbH acquired a 20 per cent stake in BMZ in 2022.
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The company said it is working on a “viable restructuring plan to be implemented after the insolvency proceedings are completed,” underscoring that existing customer relationships will be maintained.
