From the WTO web site:
Cuba notified the WTO Secretariat, on 3 May 2013, of a request for consultations with Australia on the Australian Tobacco Plain Packaging Act of 2011 that regulates the appearance and form of retail packaging used in connection with sales of cigars, cigarettes and other tobacco products.
From what I can see (and somebody please correct me if I'm wrong), this is the first Cuban GATT/WTO complaint since this one back in 1982.
