MOSCOW, Russia (AFP) — Russian aluminum giant Rusal saw its share price nearly halved on the Hong Kong stock exchange Monday after Washington placed it under sanctions, putting the metals major at risk of defaulting on part of its debt. At  0710 GMT, the company’s stocks had tumbled 49 percent to HK$2.38 ($0.30, 0.25 euros). The fall represented a loss of more than 3.5 billion euros ($4.3 billion) for the company, which is headed by […]