BULL AND KALRAY PARTNER TO DEVELOP THE NEXT GENERATION OF HIGH-SPEED NETWORKS FOR THE AI ERA

Grenoble, July 28^th, 2026 – Bull, a leader in advanced computing and artificial intelligence, and Kalray (Euronext Growth Paris: ALKAL), a specialist in hardware and software technologies for high-performance computing and data infrastructure, announce a strategic partnership focused on networking technologies for AI and HPC infrastructures. The two companies will also collaborate on Ultra Ethernet compatibility, a new open standard that has the potential to shape networking for future generations of supercomputers, AI factories, and large-scale cloud infrastructure¹. Together, the companies aim to accelerate innovation in AI networking and deliver next-generation solutions that address the performance, scalability, and efficiency requirements of the world's most demanding computing environments.