PRYSMIAN INVESTS IN RELATIVITY NETWORKS TO ESTABLISH A LONG-TERM PARTNERSHIP

- INVESTMENT FOLLOWS PRYSMIAN’S AGREEMENT ANNOUNCED LAST MARCH TO INDUSTRIALIZE HOLLOW-CORE OPTICAL FIBER AT SCALE

Prysmian has announced an investment in Relativity Networks, the leading at-scale provider of next-generation fiber-optic technology. This investment follows the agreement announced in March 2025 for the production and global deployment of hollow-core optical fiber (HCF) and cable - a transformative innovation poised to redefine the future of optical networks.

Through this partnership, Prysmian will support the growth of Relativity Networks as they work together to scale up the production of proprietary hollow-core fiber technology, enabling ultra-low latency, reduced signal distortion, and dramatically improved performance over traditional optical fibers. This breakthrough technology opens the door for a new class of fiber-optic solutions tailored to high-performance, next-generation applications such as high-frequency trading, AI acceleration, quantum networking, enabling more sustainable sources of energy for advanced data centers.

Prysmian brings to the partnership decades of expertise in specialty fibers, data center fiber technologies, and highly complex and demanding optical cables, underpinned by a strong track record of innovation in the telecom sector.

“This agreement with Relativity Networks is a natural progression of our mission to solve our customers' most critical challenges through innovation,” said Frederick Persson, Executive Vice President Digital Solutions at Prysmian. “Our expertise in bend-insensitive fibers, high- capacity multimode fibers, and compact cable designs has continually pushed the boundaries of optical performance. Hollow-core fiber is the next frontier—and we’re excited to take it to market at scale.”

“This partnership not only expands our product portfolio for data centers—where we already offer a full suite of multimode and specialty fiber solutions—but also reinforces our transformation into a comprehensive digital solutions provider,” concluded Persson. “We believe hollow core fiber will unlock entirely new applications in high-speed connectivity, and innovation will continue to be the driving force in our strategy.”

“This investment represents a pivotal milestone in Relativity Networks' mission to address two of the most urgent infrastructure challenges of the AI revolution – latency and access to power,” said Relativity Networks founder and CEO Jason Eichenholz. “As data centers face unprecedented energy demands and latency requirements, our hollow-core fiber technology delivers the critical infrastructure backbone needed to support this exponential growth. This funding – along with our continued partnership with Prysmian – allows us to accelerate our ability to meet the surging demand for infrastructure that can handle AI's massive computational requirements.”

The collaboration aligns with Prysmian’s customer-centric approach and deep understanding of fiber optic processes, which have helped build long-standing partnerships across the telecom ecosystem. Prysmian’s commitment to customer intimacy allows it to anticipate future needs and develop bespoke, cutting-edge solutions across its full range of fiber and cable offerings.

About hollow-core fiber

Hollow-core fiber has emerged as a transformative innovation critical to data center infrastructure, especially with the explosion of AI adoption. AI models need huge amounts of processing power and ultra-low latency networking and storage to handle increasingly sophisticated workloads. In HCF, light propagates in an air core, transmitting data nearly 50% faster than conventional silica glass fiber enabling data to and 1.5 times farther, reducing latency due to its higher bandwidth, and eliminating impact on network performance.

While traditional fiber optic cables typically limit data centers to within 60 kilometers (37 miles) of power providers — or to one another — due to latency constraints, Relativity Networks' HCF technology extends this range to 90 kilometers (56 miles).