TikTok’s fate in the US continues to be in doubt as the Trump administration’s rescue plan for the popular social media app has reportedly been tripped up by its own wave of tariffs on Chinese imports. A plan for TikTok to comply with the divest-or-ban law by changing its ownership structure, had received the backing of TikTok’s China-based parent company, ByteDance, as well as a few US investors and government officials. Under the proposed plan, new investors would own 50 per cent of a new American TikTok entity. Current investors would own 30 per cent and Chinese owners less than…