In 1999, Indonesia’s House of Representatives (Dewan Perwakilan Rakyat – “DPR”) enacted Law No. 5 of 1999 on the Prohibition of Monopolistic Practices and Unfair Business Competition, which was subsequently amended several times, most recently by Law No. 1 of 2026 on Penal Adjustment (collectively referred to as “Law 5/1999”). As its title suggests, Law 5/1999 addresses a wide array of types of agreements and activities that have been prohibited in order to prevent monopolistic practices or unfair business competition emerging among business actors.[1]
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