The Malaysian Anti-Corruption Commission (MACC) is not ruling out the involvement of reputable companies in the smuggling of frozen meat into the country.

MACC Chief Commissioner Azam Baki said a thorough investigation would be carried out to prove the involvement of certain parties in the recently exposed meat cartel case.

"If it already involves the cartel as alleged, we believe there must be a 'tycoon' or a reputable company involved in this matter.