Singapore-based palm oil group under probe after Indonesian police value ecological loss at Rp187.8 billion.
Indonesian police in Riau have designated Singapore-based palm oil group Musim Mas a criminal corporate suspect, alleging its operations damaged forests and cleared the buffer zone of the Air Hitam River in Pelalawan.
Alleged Damage To Forests And River Buffer
Riau police official Ade Kuncoro Ridwan said Musim Mas’ activities are “strongly suspected” to have damaged forest areas and cleared the legally protected buffer zone along the Air Hitam River in Pelalawan. Planting oil palms too close to the river allegedly eroded surrounding soil and led to a landslide.
Timeline Of Suspicion And Investigation
Ridwan said the group’s operations first drew suspicion in January 2025, prompting environmental inspections and case-building that culminated in the company being named a criminal corporate suspect in a statement published on the provincial government’s website on May 18.
Ecological Loss Valued At Rp187.8 Billion
Authorities estimate ecological damage from the alleged violations at 187.8 billion rupiah (approx. S$13.5 million), reflecting not only physical degradation to the riverbank but also broader losses tied to forest cover, biodiversity and ecosystem services in the affected buffer zone.
Legal Classification And Potential Penalties
Police have characterised Musim Mas’ actions as criminal activity under Indonesia’s environmental laws, an offence that carries a maximum penalty of up to 10 years’ imprisonment when applied to responsible individuals, and potentially heavy fines and remedial obligations for the corporate entity.
Company Response And Ongoing Process
In a statement on May 20, Musim Mas said it respects the ongoing legal process and claimed it has safeguarded the environment around the Air Hitam River, while declining to provide further details as the investigation continues. The case will test how firmly Indonesia enforces buffer-zone protections and corporate liability in a sector under intense global scrutiny.
Naming Musim Mas as a criminal corporate suspect marks a significant escalation in Indonesia’s efforts to hold large palm oil producers accountable for alleged environmental harm. For Indonesians and Singaporeans, the outcome will signal how seriously regulators are prepared to defend river ecosystems and apply the law to major cross-border companies operating in sensitive landscapes.
Sources: Straits Times (2026) , Investor Trust (2026)
Keywords: Musim Mas Investigation, Air Hitam River Buffer Zone, Riau Police Statement, Ecological Damage Valuation, Corporate Criminal Suspect
