The KFTC defined the relevant market of this case as upright piano, grand
piano and digital piano market. Such categorization was based on price range,
customer base and purpose of use. Samick Musical Instruments argued that
secondhand piano market should be included in the relevant market of this
case, but the KFTC rejected the idea, only to include the new product market.
In addition, the KFTC limited the geographic relevant market to the domestic
market, once again rejecting the respondent’s claim to include the international
market