Hong Kong's Hang Seng index climbed on Monday supported by heavyweight China Mobile Ltd. Hang Seng index advanced 0.23% or 48.18 points and closed at 21,134.18. China Mobile jumped 3.9% after Credit Suisse and HSBC upgraded stock's ratings. On the downside shipping companies declined after China said its February trade gap was the biggest in ten years. Cosco Pacific Ltd lost 1.5% and China COSCO Holdings Co declined 1.8%. China Railway Group Ltd fell 5.4% on news high-speed railroad collapsed during heavy rain.