Hong Kong has become a vital conduit for high-tech products moving in and out of China, emerging as one node in a $2 trillion network of Asian trade fueled by a global boom in artificial intelligence.A review of official data by Bloomberg found the city accounted for more than half of China’s $239 billion chip imports in the first five months of 2026, a record share. A decade ago, Hong Kong covered just a third of the mainland’s purchases of semiconductors....