Exhibit 99.1 Condensed Consolidated Interim Statements of Comprehensive (Loss) Income For the three and six months ended June 30, 2025 and 2024 (Expressed in thousands of US dollars, except share and per share amounts - unaudited) Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three and six months ended June 30, 2025 and 2024 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As at June 30, 2025 and December 31, 2024 (Expressed in ...