Exhibit 99.1 STEALTHGAS INC. REPORTS SECOND QUARTER AND SIX MONTHS 2025 FINANCIAL AND OPERATING RESULTS ATHENS, GREECE, August 25, 2025. STEALTHGAS INC. (NASDAQ: GASS), a ship-owning company serving the liquefied petroleum gas (LPG) sector of the international shipping industry, announced today its unaudited financial and operating results for the second quarter and six months ended June 30, 2025. OPERATIONAL AND FINANCIAL HIGHLIGHTS • Strong profitability continued for the second quarter, with Net income o ...