Sydney Office Contact Us Speak with our legal team for cross-border advisory, disputes, investment, and regulatory matters. call Phone General Enquiries +61 0452639188 mail Email Sydney Office info@duanduan.com.au location_on Address Level 14/74 Castlereagh Street, Sydney, NSW, Australia schedule Office Hours Mon – Fri: 9:30 AM – 5:30 PM Send a Message Request Legal Consultation First Name Last Name Email Phone Message Submit Find Us Get Directions