Attorney General's Office Probes Alleged Involvement of State Officials in Samin Tan Case
The Attorney General’s Office (AGO) continues to investigate the alleged corruption case in the coal mining sector at PT Asmin Koalindo Tuhup (AKT), involving businessman Samin Tan as a suspect. The AGO is also still calculating the state losses in the case.
“The state losses (KN) are still being calculated,” said the Head of the Public Prosecutors’ Information Centre at the AGO, Anang Supriatna, when contacted on Monday (30/3/2026).
Anang stated that his office would also conduct further investigations into allegations of state officials’ involvement in the corruption case. The investigation is ongoing.
“We will see the results of the further examination into the involvement of state officials and affiliated parties ahead, of course based on evidence in accordance with regulations, while upholding the principles of caution and the presumption of innocence,” he explained.
Case Background
The Attorney General’s Office (AGO) has designated Samin Tan as a suspect in the corruption case involving irregularities in the management of mining operations at PT Asmin Koalindo Tuhup (AKT) in Murung Raya Regency, Central Kalimantan. Here is the background of the case implicating Samin Tan.
The Director of Investigation at the Deputy Attorney General for Special Crimes (Jampidsus), Syarief Sulaeman Nahdi, explained during a press conference on Saturday (28/3/2026) that Samin Tan, as the beneficial owner of PT AKT—a coal mining contractor based on a Coal Mining Business Work Agreement (PKP2B) whose permit was revoked in 2017—continued mining and selling mining products illegally and in violation of the law. These activities persisted until 2025.
“The suspect ST, through PT AKT and its affiliates, unlawfully continued mining and sales using invalid permit documents, in collaboration with state officials responsible for supervising mining activities, thereby harming the state’s finances and/or economy,” Syarief continued.
The state losses are currently being calculated by the audit team. The suspect is charged under layered articles, namely Article 603 jo Article 20 letter a or c of Law No. 1 of 2023 on the Criminal Code jo. Article 18 of Law No. 31 of 1999 on the Eradication of Criminal Acts of Corruption jo. Law No. 20 of 2001 on Amendments to Law No. 31 of 1999 on the Eradication of Criminal Acts of Corruption.
Then Article 604 jo Article 20 letter a or c of Law No. 1 of 2023 on the Criminal Code jo. Article 18 of Law No. 31 of 1999 on the Eradication of Criminal Acts of Corruption jo. Law No. 20 of 2001 on Amendments to Law No. 31 of 1999 on the Eradication of Criminal Acts of Corruption jo. Article 618 jo. Article 20 letter a or c of Law No. 1 of 2023 on the Criminal Code.
“ST has been detained for the next 20 days at the Salemba Detention Centre Branch of the Attorney General’s Office,” he added.