India, July 31 -- Asian stocks ended mostly lower on Thursday, with the Federal Reserve's interest-rate decision, tech earnings, U.S. President Donald Trump's tariff threats and Chinese data in focus.

Japanese markets outperformed as the Bank of Japan held interest rates steady and offered a cautiously optimistic view on the economic outlook.

Gold prices surged above $3,300 per ounce despite the dollar extending its bullish run. Oil prices steadied after three days of gains.

China's Shanghai Composite Index fell 1.2 percent to 3,573.21 as data showed Chinese factory activity unexpectedly deteriorated in July to a three-month low.

Hong Kong's Hang Seng Index tumbled 1.6 percent to 24,773.33 after Chinese leaders signaled they would refra...