The Supreme Court upheld the decision that the state-owned bus operator PPKS abused its dominant position on the local bus transport market. While PPKS argued it did not hold a dominant position due to lack of control over licenses and potential entry by competitors, the Court found PPKS's large market share and ability to undermine competition through predatory pricing established dominance. The Court also rejected PPKS's argument that lower fares benefited customers, finding protection of competition serves the public interest over temporary benefits that could eliminate competitors.