CBS/Sony was a label that was launched in 1968 by the then-named CBS/Sony Records Inc., a 50/50 joint venture that was established in March that same year between CBS Inc. and Sony Corporation. Beyond Japan, the label was also used in Hong Kong, the Philippines, and Spain.
In Spain the label was active in the 1990s. In 1991, Sony dropped the CBS label in favor of "Columbia", for which they acquired the rights from EMI. In Spain however, the Columbia brand was not owned by EMI, but by Discos Columbia, S.A. Because of this, Sony introduced the CBS/Sony label in Spain. Sony eventually acquired the rights to the Columbia brand in Spain, and the CBS/Sony label in Spain was discontinued around 1996/1997.
Catalogue numbers of CBS/Sony releases in Spain often have the 'COL' prefix, but this does not mean they are Columbia releases.