Supreme Court Rejects Appeal, Tamron's 18-Year Sentence in Tin Corruption Case Upheld
The Supreme Court has rejected the judicial review filed by smelter executive Tamron alias Aon, a convicted felon in the corruption case concerning tin commodity trading management, meaning his 18-year prison sentence remains in force.
Monitored from the Supreme Court’s case directory website in Jakarta on Thursday, the judicial review petition was decided on 22 July 2026. The ruling was presided over by chief justice Prim Haryadi, with Arizona Mega Jaya and Sutarjo as panel members.
“Verdict: reject the convicted person’s judicial review,” the ruling excerpt stated on the Supreme Court’s case directory website.
Tamron, as the beneficial owner of CV Venus Inti Perkasa and PT Menara Cipta Mulia, filed the judicial review in the corruption case concerning tin trading management within PT Timah’s mining business permit area from 2015 to 2022, after the Jakarta High Court increased his sentence to 18 years in March 2025.
“Amending the decision of the Corruption Court at the Central Jakarta District Court Number 77/Pid.Sus-TPK/2024/PN.Jkt.Pst which was appealed,” said presiding judge Teguh Harianto in the ruling copy received in Jakarta on Monday (17/3/2025).
As for the criminal fine, the panel of judges set the same amount as the Jakarta Corruption Court’s verdict, namely Rp1 billion, but with a lighter subsidiary sentence should the fine not be paid, namely six months’ imprisonment.
Likewise, the additional penalty in the form of compensation money to be paid remains the same as the previous verdict, namely Rp3.54 trillion, but with a heavier subsidiary provision, namely 10 years’ imprisonment.
“The period of detention served by the defendant shall be deducted entirely from the sentence imposed, and the defendant shall remain in custody,” said Teguh.
Tamron’s actions were proven to violate Article 2 Paragraph (1) in conjunction with Article 18 of Law Number 31 of 1999 concerning the Eradication of Corruption as amended by Law Number 20 of 2001, in conjunction with Article 55 Paragraph (1) Point 1 of the Criminal Code, as stated in the first primary charge.
He was also legally and convincingly proven guilty of committing money laundering, thereby violating Article 3 of Law Number 8 of 2010 concerning the Prevention and Eradication of Money Laundering, as stated in the second primary charge.
Tamron was found guilty for his involvement in the alleged corruption case concerning tin commodity trading management within the mining business permit area of PT Timah Tbk from 2015 to 2022, causing state losses amounting to Rp300 trillion.
These losses include Rp2.28 trillion in losses from leasing arrangements for processing and smelting equipment with private smelters, Rp26.65 trillion in losses from tin ore payments to PT Timah’s mining partners, and Rp271.07 trillion in environmental losses.
Tamron was also suspected of committing money laundering from the corruption proceeds he received in the case, amounting to Rp3.66 trillion, used among other things to purchase heavy equipment, government bonds, and shophouses.
In the case, Tamron, together with CV VIP and PT MCM General Manager of Operations Achmad Albani, CV VIP President Director Hasan Tjhie, and tin ore collector Kwan Yung alias Buyung, through CV VIP and its affiliated companies, namely CV Sumber Energi Perkasa, CV Mega Belitung, and CV Mutiara Jaya Perkasa, were proven to have purchased and/or collected tin ore from illegal mining within PT Timah’s mining business permit area.
These activities were also carried out together with other private smelters, including PT Refined Bangka Tin, PT Sariwiguna Binasentosa, PT Stanindo Inti Perkasa, and PT Tinindo Internusa.