Trump has indicated a potential breakthrough in US-Iran negotiations ahead of his visit to China, raising hopes for improved relations between the two countries before the US-China summit. The US is imposing sanctions on Chinese companies to disrupt Iran's military supply chain, seen as a strategic move by Trump to gain an advantage in the upcoming US-China summit. Meanwhile, the investigation into the fire involving the South Korean vessel 'Namuhho' in the Strait of Hormuz has concluded, but concerns about maritime security persist.