British pharmaceutical company GlaxoSmithKline has dismissed staff in China for bribing officials in 2001, according to the Financial Times.
About 30 staff in GSK's vaccines business were fired for bribing Chinese officials and taking kickbacks more than 12 years ago, putting the company even under more scrutiny.
GSK is already under unvestigation by U.S. and UK authorities for a much bigger corruption scandal in China, which involve elaborate schemes to bribe doctors and hospitals.
In May this year, Chinese police charged GSK's former British boss of the Chinese unit Mark Reilly, and other colleagues with corruption.
A sex video of Reilly and his Chinese girlfriend allegedly sparked a major investigation into a £90 million (US$153 million) China bribery probe.
China's Ministry of Public Security found that GSK China Investment used various channels like travel agencies to bribe without restraint government officials, drug associations, medical foundations, hospitals and doctors.
The firm engaged in direct bribery as well as indirect bribery through its sponsorship of various activities, the ministry said.
The ministry also revealed that some executives at GSK China Investment had used false value-added tax receipts, fake receipts from travel agencies for trips and fake general receipts.