Mr. Dan Goldberg reports

TELESAT ADDS MILITARY KA-BAND TO TELESAT LIGHTSPEED TO MEET STRONG GLOBAL DEMAND FOR DEFENCE AND SOVEREIGNTY REQUIREMENTS

Telesat Corp. is adding 500 MHz (megahertz) of military Ka-band (Mil-Ka) spectrum to the initial 156 satellites in the Telesat Lightspeed constellation to meet the fast-growing global requirements of allied defence users. Mil-Ka is immediately adjacent to the commercial Ka-band spectrum used by Telesat Lightspeed, which allows the change to be made without adversely impacting schedule and with only a modest impact on program cost. The 500 MHz of Mil-Ka will replace the same amount of commercial Ka-band spectrum on the network's user link, with the gateway link being unaffected by the spectrum change.

Governments have long relied on geostationary (GEO) Mil-Ka systems to meet their most mission critical satellite communications requirements. More recently, and as a result of evolving operational requirements, advances in technology, and a significant increase in defence spending by NATO (North Atlantic Treaty Organization) members and other allied governments, military planners are advancing satellite communications programs that leverage the advantages of distributed, resilient, high-throughput, low-latency LEO networks. Telesat Lightspeed was designed from inception to meet the security and resiliency requirements of defence organizations, and the addition of interoperable Mil-Ka connectivity further enhances its ability to support rapidly expanding defence and sovereignty requirements.

"We're seeing very significant global demand for a Mil-Ka LEO satellite capability as governments respond to recent geopolitical developments and recognize the clear operational advantages offered by advanced LEO constellations," stated Dan Goldberg, Telesat's president and chief executive officer. "The addition of Mil-Ka to Telesat Lightspeed will result in a substantial increase to the current global supply of Mil-Ka capacity. Moreover, by integrating it with the already highly advanced Telesat Lightspeed network, the Telesat Mil-Ka capability is expected to have meaningfully superior performance characteristics relative to the Mil-Ka platforms that allied governments have historically relied upon. This is an important development and one that underscores Telesat's decades-long commitment to support the mission critical requirements of allied defence users."

Military satcom architectures require interoperability across national networks, enabling coalition partners to integrate capabilities, share mission-critical connectivity and maintain assured communications under joint operational command. With persistent global coverage -- including over the Arctic -- Telesat Lightspeed Mil-Ka services add a powerful, dedicated layer of interoperable capacity through a secure, flexible and highly robust data transport layer.

The first two Telesat Lightspeed production satellites will be launched in December, 2026, followed by a high cadence launch schedule throughout 2027.

About Telesat Corp.

Backed by a legacy of engineering excellence, reliability and industry-leading customer service, Telesat (Nasdaq and Toronto Stock Exchange: TSAT) is one of the largest and most innovative global satellite operators. Telesat works collaboratively with its customers to deliver critical connectivity solutions that tackle the world's most complex communications challenges, providing powerful advantages that improve their operations and drive profitable growth.

Continuously innovating to meet the connectivity demands of the future, Telesat Lightspeed, the company's state-of-the-art Low Earth Orbit (LEO) satellite network, has been optimized to meet the rigorous requirements of telecom, government, maritime and aeronautical customers. Telesat Lightspeed will redefine global satellite connectivity with ubiquitous, affordable, high-capacity, secure and resilient links with fibre-like speeds.

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