PVTIME – The German solar glass manufacturer Glasmanufaktur Brandenburg (GMB) has filed for insolvency, with its parent company, Borosil Renewables, citing a lack of clear policy support as the key factor. GMB is one of Europe’s remaining solar glass producers and operates a plant with a daily production capacity of 350 tonnes in Zschornewitz, eastern Germany. The firm employs 247 people.
The firm had been under mounting financial strain and introduced short-time working arrangements for staff in January amid plummeting demand, with monthly losses reaching €900,000. Borosil, which became GMB’s majority shareholder in October last year, notes that demand for its products dropped to 40% of output earlier in 2025.
Following the insolvency filing on 4 July, GMB’s operations will be overseen by a court-appointed administrator, and Borosil has confirmed that it will no longer include the subsidiary’s losses in its financial results.
This adds to the turbulence in Europe’s solar manufacturing sector, which has already seen the long-standing company Meyer Burger close its US module factory and seek insolvency protection for its European cell production facilities, leaving Meyer Burger without any manufacturing sites. Borosil highlights this decline as indicative of the broader challenges facing European PV manufacturers.
The company points to Europe’s market being flooded with aggressively low-priced solar modules from Chinese firms, as well as insufficient policy measures to protect local manufacturers from such competition. The company notes that China supplied almost 200GW of modules to Europe between early 2023 and late 2024, with European buyers accounting for 94GW of China’s record 235GW of exports in 2024.
As US trade barriers increase, Chinese manufacturers may intensify their efforts to sell into Europe, which could lead to prolonged oversupply. However, Borosil states that the insolvency will free up resources to expand its Indian operations, building on its existing global glass manufacturing capacity of 8.5GW.
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