New Delhi, March 15 -- Billionaire and DOGE head Elon Musk's companies, Tesla and SpaceX, have sent letters to the US Trade Representative (USTR) Jamieson Greer highlighting the issues with Donald Trump's tariff policies.

EV maker Tesla has cautioned about the negative consequences on its business from tariffs imposed by other countries on US-made products in response to duties imposed by the Trump administration.

Aerospace company SpaceX raised concerns about rising operating costs for its Starlink internet satellite service due to the retaliatory tariffs, while its other competitors abroad do not face a similar challenge.

Musk-owned companies are in focus due to the billionaire's involvement in the Trump administration through the De...