CC Records label was probably not called 'CC'.  The trouble is that neither the EP shown 'Introducing The Country Kin Trio (CCEP-2; 1978), nor the picture sleeve in which it came in give any indication of which company was responsible for the recording.  Therefore it has been reduced to using the first two letters of the 'CCEP' prefix as an identifier.  Presumably there is a CCEP-1. The EP was produced by George Byrne. Thanks to Robert Lyons For The Info.

78 Not Traced CC CCEP 1
78 The Country Kin Trio 'Introducing The Country Kin Trio CC CCEP 2