Tata Motors share price slumps as JLR pauses export to US amid Trump trade tariffs.Tata Motors' share price fell as much as 9.5% as Jaguar Land Rover decides to pause exports to the US in April.India's carmakers are largely insulated from Trump's move, but Tata Motors is likely to see a second-hand impact through JLR.President Trump signed an executive order imposing a 25% tariff on foreign carmakers, affecting import of fully assembled cars and auto components.