Ridgepost Capital, Inc.

Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications, including aviation, ground, and marine vehicles. The company's silicon anode technology aims to provide batteries with high energy density, high power density, and fast charging capabilities across various operating temperatures, offering superior performance compared to conventional graphite lithium-ion batteries. These silicon anodes are a direct replacement for graphite anodes in traditional lithium-ion batteries, utilizing existing manufacturing processes and supply chains. Currently, Amprius batteries are primarily used in aviation applications, such as unmanned aerial systems (UAS), including drones and high-altitude pseudo satellites (HAPS). Amprius batteries have been tested and validated by customers including AALTO Airbus, AeroVironment, BAE Systems, Kraus Hamdani Aerospace, Nokia Drone Networks, Nordic Wing, Teledyne FLIR, and the U.S. Army. Since inception, total customer engagements have grown to over 500, with shipments to hundreds of customers during the year ended December 31, 2025. From inception through December 31, 2025, the company shipped over 4.2 million battery cells for mission-critical applications. Amprius's silicon anode structures, battery cell designs, and manufacturing processes are protected by patents, trade secrets, and know-how developed over 15 years. SiCore batteries, developed in collaboration with Berzelius (Nanjing) Co., Ltd., began limited shipment in 2023. To meet demand, Amprius entered an Exclusive Supply Agreement with Berzelius in November 2023, granting exclusive rights to purchase its silicon anode materials in the United States, Canada, and Mexico. The full commercial launch of SiCore batteries was announced in January 2024.