BERLIN, April 30 (Reuters) - Mercedes-Benz is

in talks with representatives of the administration of President

Donald Trump regarding expansion in the United States, the

German carmaker's chief executive said on Wednesday.

CEO Ola Kaellenius said the talks - on whether such

investments would be good for the U.S. as well as for the

company's business model - were taking place in a constructive

atmosphere.

However, adjustments cannot take place overnight and instead

require several years, he told investors after the company

reported a plunge in its first-quarter profit and pulled

full-year guidance amid turmoil over Trump's tariff policies.