New Zealand company Fonterra, the world's largest dairy exporter, has been criticised for how it handled the China tainted milk scandal.<br /><br />Fonterra owns a 43 per cent stake in Chinese firm San Lu, one of several companies that sold dairy products tainted with the industrial chemical melamine.<br /><br />Al Jazeera's Tony Birtley discovers that farmers' anger over Fonterra's perceived slowness to reveal the extent of the problem is now threatening further business ventures in China.
