Hyundai Heavy Industries was fined KRW 970m ($810,000) by the Korea Fair Trade Commission (KFTC) for unfair trade practices with one of its subcontractors.

The South Korean antitrust watchdog said the shipbuilder exploited technology data on piston manufacturing controlled by its subcontractor, Samyoung Machinery, in an effort to diversify its suppliers and save costs, according to The Korea Times.

The fine was reported to be the largest that the KFTC has issued for misuse of technologies from other companies.