The repretantetives of navies, that operate warships based on MEKO (MEhrzweck KOmbination, or multipurpose combination) design concept, come together time to time. Known as the The MEKO User Workshop, this gathering provides a unique opportunity for the international community of MEKO users to network and exchange information and activities aimed at promoting a better understanding of the collective MEKO supportability and employment issues and activities being undertaken or planned by each of the nations operating the MEKO ships.
I think that this is a very clever idea for marketing the MEKO design concept from the former Blohm & Voss now TKMS. The idea was copied by the German Submarine Consortium as SubCon series of users conferences aimed for the navies that use Type 209 class submarines.
This years MEKO Users Workshop was held under the patronage of Greek Navy in Athens. This is the official statement as translated by Google:
Ref 114
Friday, October 7, 2011PRESS RELEASE
From the Navy General Staff announced the completion of the work of the conference MEKO Users Workshop 2011 held from 3 to 7 October 2011 in Athens. The conference, held annually, made presentations and discussed technical and operational matters between the Navy, which have included in their power class Frigates MEKO t and defense industry. The conference was attended by representatives of the Navy from 9 countries (Greece, Australia, Argentina, Brazil, Germany, Malaysia, South Africa, New Zealand and Portugal)
At the conference, the Navy no longer competent Officers involvement in issues related to P / C sq. HYDRA, organized visits to the PNM J / K AVEROF in F / C SALAMIS and Administration Underwater Demolition, and made a presentation of opportunities and the role of the Centre for Maritime Interdiction Training (KENAP).Commander Adamantios Christodoulou PN
Navy spokesman
There are two things that bother me here:
1) One of the major MEKO users Turkish Navy is not mentioned here. It is possible that given the current political tension in the Eastern Mediterranean, Turkish Navy was not invited. Or Turkish Navy was indeed invited, but chose not to attend. That is understandable.
2) Brazil was not and is not a MEKO users. There is not one major warship in Brazilian Navy constructed by German shipyards. So why were they here?
devrimyaylali.com 
Greece acknowledge Turkey? Maybe when hell freezes over.
Smart business move to invite Brazil which is in the market for a massive fleet replacement with their new oil wealth.
Dave, you are right in both issues.
Well Brazil´s presence midght be based on the fact that the Brazilian Navy currently is needing new ships, renewing and increasing it´s fleet. So they are in close contact with all the important navy shipbuilders, especially in France, Spain and Italy, so they are surely also interested in Germany´s MEKO options.
But as you mentioned, Brazil does not have any MEKO Ships yet, probably that´s based on the fact that the Brazilian government prefers partners that will not only sell ships and equipmento to Brazil, but also know-how and tecnology transfer. Like they did with France´s DCNS Group, which signed a big contract including know-hoe and tecnology transfer for Brazil´s submarine construction program, which is in progress, including the construction of a new submarine base with submarine construction yard in the state of Rio de Janeiro. Besides the Brazilian efforts to construct their own nuclear powered submarine, a program which is in progress at least for 20 years now.