For all intents and purposes, Uzbekistan quit the organization a while ago, but now it’s official.
The Uzbekistani authorities sent an official notification about the decision to the Moldovan President Vladimir Voronin, who currently chairs the organization.
Uzbekistan joined the GUUAM, which was formed with the U.S. backing in 1999. But in 2002 Uzbekistan announced that it plans to pull out from the organization. Following this announcement, Uzbekistan started to ignore all summits and working meetings that were held in frames of GUUAM.