Economic development and growth have become central concerns for all countries, ‎prompting policymakers to continuously seek effective strategies for achieving ‎sustainable economic expansion. Simultaneously, increasing resource constraints and ‎intensified competition over limited resources have made the realization of economic ‎growth more challenging. Throughout the history of economic thought, investment has ‎been widely recognized as a key engine of economic growth, and identifying its ‎determinants has therefore received considerable attention. The industry, mining, and ‎trade sectors are among the most strategic components of the economy, where ‎investment plays a critical role in enhancing production capacity and fostering economic ‎growth. Given the strong dependence of various industries on the volume, composition, ‎and structure of investment in these sectors, investment dynamics in industry, mining, ‎and trade occupy a prominent position in economic policy analysis. This study analyzes ‎the major challenges facing investment in Iran’s industry, mining, and trade sectors and ‎proposes policy measures to overcome existing constraints. Recommended strategies ‎include stimulating investment demand through reductions in lending interest rates, ‎managing exchange rate volatility and implementing exchange rate hedging instruments, ‎promoting competitive investment planning, developing coherent public–government ‎partnership programs, transferring unfinished development projects to the private sector, ‎establishing foreign-currency project funds for highly competitive projects, transforming ‎trade activities into productive investment, and increasing government capital ‎expenditures and procurement. Financial sanctions affect the economy primarily through ‎trade restrictions, particularly by limiting banking and insurance activities and reducing ‎investment in the oil and gas sector.