US and Chinese officials met in London to discuss preventing an escalating trade dispute, with rare earth exports being a key issue.Talks centered around preventing a trade war escalated further, with accusations of Beijing stalling on agreed tariff rollbacks.Market reactions were positive, with the S&P 500 up by 5.52% and Bitcoin rising 3.5% to reclaim US$110k.Optimism around trade stability lifted global investor confidence, leading to an overall optimistic market sentiment.