Copa does not seem to be a member yet.. just in talks to become one:
On 21 November 2008, Copa chief executive Pedro Heilbron on the ALTA airline leaders forum in Cancun, expressed that Copa Airlines has decided to leave Skyteam and is in exclusive talks with Star Alliance. According to Mr. Heilbron, Copa Airlines has not much choice since Continental Airlines left Skyteam for Star Alliance.[20]. In May 2009 Copa Airlines confirmed exiting SkyTeam on 24 October 2009[24]