As Britain shivers under an extensive coating of snow this morning, the drop to sub-zero temperatures is but an hors d’oeuvre for this hapless investment commentator. Barring weather-related delays at Heathrow tomorrow, there is a week in prospect of business at minus 30 degrees Celsius (including wind chill) in the former Manchurian region of north-east China, equidistant from China’s borders with Mongolia, Russia and North Korea. Fortunately, these airline pilots always know where they are. Such is the price we intrepid investors must pay to break into new frontiers ! Thankfully, the return leg takes in the familiar turf of Hong Kong, where temperatures tend to be slightly less life-endangering, offering a welcome opportunity for some pulse-taking.