
Update to shareholders
September 16, 2025
Funding update
December 2, 2025Stirlingversal sign Cooperation Agreement with Yuanhang

We are pleased to announce that Stirlingversal has signed a Cooperation Agreement with Xi’an Yuan Hang Vacuum Brazing Ltd. (Yuanhang), acknowledging them as a key supply chain partner for our Stirling engine production in China.
Yuanhang is a market leader in vacuum brazing and precision metalwork services, founded by Mr. Ren, one of China’s foremost experts in vacuum brazing technology with decades of accumulated know-how in advanced metal joining.
Vacuum brazing is a critical process in the manufacturing of Stirling engines, ensuring the airtight sealing and structural integrity of key components operating under extreme temperature and pressure conditions. Partnering with Yuanhang will enable us to secure high-quality, high-precision production standards and lay a strong foundation for large-scale, stable manufacturing of our Stirling engine systems.
This collaboration also reflects Stirlingversal’s broader strategy: combining Northern European R&D competitiveness with China’s advanced industrial manufacturing capabilities to deliver Stirling engines that provide the best value for money to our customers worldwide.
Through our production base in Jiangsu, China, we have already achieved major reductions in cost and lead time. Working long-term with Yuanhang will further enhance our yield rates, strengthen quality control, and improve cost efficiency, positioning Stirlingversal for the next stage of scalable and sustainable growth in the global clean energy market.

