Uber invests big in China in face of fierce rival

San Francisco

THE head of Uber on Tuesday said the ride-sharing firm has spent a billion dollars to gain traction in China, where the local champ may not be playing fair.

Uber's share of the Chinese market has climbed from one per cent at the start of the year to about 30 per cent. But the company remains a distant second to Didi Kuaidi, Uber co-founder and…