Amprius Technologies, Inc. ("Amprius"), (NYSE:AMPX), a leader in silicon anode lithium-ion batteries, will hold a conference call and webcast on Wednesday, August 5, 2026, at 8:30 a.m. Eastern time (5:30 a.m. Pacific time) to discuss its financial results for the second quarter ended June 30, 2026. Financial results will be issued in a press release prior to the call.

Amprius management will host the presentation, followed by a question-and-answer period.

Date: Wednesday, August 5, 2026

Time: 8:30 p.m. ET (5:30 a.m. PT)

Toll-Free Number: 866-424-3442

International Number: 201-689-8548

Webcast: Register and Join

Please call the conference telephone number 5-10 minutes prior to the start time. An operator will register your name and organization. If you have any difficulty connecting with the conference call, please contact Gateway Group at 949-574-3860.

The conference call will be broadcast simultaneously and available for webcast replay here.

About Amprius Technologies, Inc.

Amprius Technologies, Inc. is a leader in advanced lithium-ion battery technology, delivering high-energy and high-power silicon-anode batteries with up to twice the energy density, range, and flight time of conventional graphite-based cells. Headquartered in Fremont, California, Amprius operates an R&D lab and pilot manufacturing facility for silicon anodes and cells. To support scalable production, the Company employs a contract manufacturing strategy, enabling rapid capacity expansion with minimal capital investment. Committed to driving innovation in energy storage, Amprius powers next-generation applications in aerospace, defense, and mobility. For additional information, please visit amprius.com and the Company’s LinkedIn page.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260715359046/en/

Investors

Tom Colton, Greg Bradbury

Gateway Group, Inc.

949-574-3860

IR@amprius.com

Media

Zach Kadletz, Brenlyn Motlagh

Gateway Group, Inc.

949-574-3860

Amprius@gateway-grp.com