Richardson Electronics, Ltd. is exhibiting at the RE+ Midwest event in the Renaissance Schaumburg Convention Center from September 9 to 10, 2026, featuring its Battery Energy Storage Systems portfolio including 211 kWh, 422 kWh, 760 kWh, and 5 MWh RESS solutions.

Richardson Electronics, Ltd. is a leading global manufacturer of engineered solutions, power grid and microwave tubes, and related consumables; power conversion and RF and microwave components including green energy solutions; high-value replacement parts, tubes, and service training for diagnostic imaging equipment; and customized display solutions. More than 60% of our products are manufactured in LaFox, Illinois, Marlborough, Massachusetts, or Donaueschingen, Germany, or by one of our manufacturing partners throughout the world. All our partners manufacture to our strict specifications and adhere to our supplier terms and conditions. We serve customers in the alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. More information is available at www.rell.com. Richardson Electronics common stock trades on the NASDAQ Global Select Market under the ticker symbol RELL. •We design and distribute products from leading manufacturers of RF and microwave components, power semiconductors, electron tubes, microwave generators, and data display monitors. •Our “Engineered Solutions” include products which we manufacture or modify, products which are manufactured to our specifications by independent manufacturers under our own private brands, and customer-specific solutions designed to fit a unique application. •Our integrated global supply chain makes it possible to balance extensive product inventories, on-time delivery and direct ship capabilities anywhere in the world, making us one of the easiest and most cost-effective companies with which to do business. Headquartered outside Chicago, in La Fox, Illinois, Richardson Electronics serves clients from a network of sales offices and stocking locations throughout the world’s major economic regions: Americas | Asia Pacific & Australia | Europe | Middle East