The US Treasury Secretary announced a major new economic pressure campaign against Iran, aimed at banks, businesses and countries still trading with Tehran. Iran has threatened to block oil exports from the Persian Gulf, including through the Strait of Hormuz. That could raise oil and energy prices and hit shipping. For a Thai SME, check how much your fuel, freight and energy costs depend on imported oil, and consider a buffer in your budget. Also check whether any of your suppliers or payment channels touch Iran-linked trade, since sanctions could affect bank transfers.