Hutchison chairman Li Ka-shing added his voice to those questioning Hong Kong's future as a shipping hub yesterday, saying it did not need to build Container Terminal 10 when 30 to 40 per cent of existing port capacity was not being used. 'All the factories and cargo are on the mainland. Why should the cargo be moved to Hong Kong?' he asked. 'Does it mean Hong Kong can get business from China if we build 10 more ports? It's impossible. The problem lies in our geographical location.'