Tunnelling 20Twenty will take place in Hong Kong 19-22 September 2011. This event from the International Tunnelling Association (ITA) aims to explore the opportunities in tunnelling and what the international market look like for the next 20 years. Organizers have noted that a 25% discount off the standard rate is available to those using the code GEO-25DIS when booking. Geosynthetica is a media partner to the event.