* Hang Seng index ends down 0.91% * China Enterprises index HSCE falls 1.31% * Tech firms down 1.37%, financial sector sub-index falls 0.6% April 7 (Reuters) - Hong Kong’s Hang Seng Index fell on Wednesday in its first trading session after an extended holiday as tech heavyweights and financials dragged it lower. ** At the close of trade, the Hang Seng index was down 263.94 points or 0.91% at 28,674.80. The index had closed at its highest level in more than a week on Apr. 1 before a five-day holiday weekend. ** The Hang Seng China Enterprises index fell 1.31% to 11,070.58. ** Index heavyweight Tencent dropped 3.75% and was the biggest drag on the Hang Seng for the day. Its fall pushed the TECH index down 1.37% and the IT sector down 2.4%. ** Shares of Lenovo Group also dragged on the TECH index, falling 4.07% for a third consecutive session of declines after the PC maker settled a multi-year patent fight with Finland’s Nokia. ** The sub-index of the Hang Seng tracking energy shares dipped 0.2%, the financial sector ended 0.63% lower and the property sector slid 0.22%. ** Wednesday’s falls came despite inflows from mainland investors who were net buyers of Hong Kong shares on the day, according to Refinitiv data. ** The top gainer on the Hang Seng was WH Group Ltd, which gained 2.84%, while the biggest loser was Haidilao International Holding Ltd, which fell 5.59%. ** China’s main Shanghai Composite index closed down 0.1% at 3,479.63 points, while the blue-chip CSI300 index ended down 0.71%. ** Around the region, MSCI’s Asia ex-Japan stock index was weaker by 0.28%, while Japan’s Nikkei index closed up 0.12%. ** The yuan was quoted at 6.543 per U.S. dollar at 08:10 GMT, 0.03% weaker than the previous close of 6.5409. (Reporting by Andrew Galbraith; editing by Uttaresh.V)