Australia's S&P/ASX 200 ended its session up 2.6%, the strongest performer among Asian-Pacific markets Tuesday after the Reserve Bank of Australia left its key interest rate unchanged at 2.75%. Japan's Nikkei 225 rose 1.8%. Hong Kong's Hang Seng Index slid 0.7%. China's Shanghai Composite rose 0.6%. South Korea's Kospi was flat. India's Sensex was down 0.5%.