China's exports unexpectedly slumped in October as overseas orders tapered off following months of front-loading to beat President Donald Trump's tariffs, and as buyers watched to see how a volatile month in U.S.-China trade ties would play out. Outbound shipments from China shrank 1.1% last month, the worst performance since February, customs data showed on Friday, reversing from a 8.3% rise in September, and missing a forecast for 3.0% growth in a Reuters poll.