As the Trump-Xi summit begins in Beijing, Reuters analyzes that US expectations for China to help resolve the US-Iran war may fall short. Iran remains Beijing's crucial strategic partner in the Middle East, supplying oil and balancing US power. While Trump could threaten sanctions against major Chinese banks, the US is hesitant due to potential retaliatory trade wars, inflation, and China's dominance in rare earth minerals. Consequently, Xi is unlikely to pressure Tehran into making significant concessions.