- YANDINA, Sunshine Coast, Queensland, AUSTRALIA Crestnut Products Pty Ltd, Trading As NUTWORKS MACADAMIA NUT PROCESSORS: Pioneer Rd, Yandina 4561, Sunshine Coast, Qld, AUSTRALIA. Phone: (07) 54727777 Fax: (07) 54727577 International: 61 7 54727777 Email: info@nutworks.com.au Web Site Design by Sunshine Sites and Photography ...www.nutworks.com.au