The Hang Seng surged 408 points or 1.6% to close at 25,538 on Tuesday, rising for the fourth session and reaching its highest level in almost four years. The upsurge was driven by broad-based sector gains and optimism ahead of a planned meeting between U.S. and Chinese officials in Stockholm next week - their third round of talks aimed at extending a tariff truce. A strong rise in U.S. futures also boosted sentiment after President Trump announced a trade deal with Japan that includes a 15% tariff on all goods, including autos. Adding to bullish sentiment were Beijing’s efforts to curb intense price wars and a massive hydropower dam project in Tibet. Meantime, daily turnover in China’s equity markets reportedly rose to near five-month highs, while margin financing hit its highest in nearly four months. The tech index jumped 2.5%, followed by consumer and financial shares. Top performers included Kuaishou Tech (7.0%), Tencent (4.9%), Kingdee Intl. Software (4.4%), and Meituan (3.0%).