Exhibit 99.1 NEWS RELEASE Media Contact: Katie Nieri Sempra (877) 340-8875 media@sempra.com Financial Contact: Jenell McKay Sempra (877) 736-7727 investor@sempra.com Sempra Reports 2023 Financial and Business Results • Announces 20% Increase in Capital Plan to $48 Billion • Raises Annualized Common Stock Dividend for 14th Consecutive Year • Narrows Full-Year 2024 and Issues 2025 EPS Guidance Ranges • Affirms 6-8% Projected Long-Term EPS Growth Rate SAN DIEGO, Feb. 27, 2024 — Sempra (NYSE: SRE) (BMV: SRE) to ...