science

Indonesian tin mining scandal

Indonesian tin mining scandal is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Indonesian tin mining scandal rather than just read about it. In short: The Indonesian tin mining scandal was a scandal that involved the Indonesian state-owned mining enterprise PT Timah Tbk, which facilitated illegal mining activities in the Bangka Belitung Islands from 2015 to 2022. The environmental damage resulting from the scandal was estimated to have reached US$16.8 billion.

Key takeaways

Indonesian tin mining scandal belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Indonesian tin mining scandal to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Indonesian tin mining scandal from memory before moving on to harder problems.

Reference excerpt

The Indonesian tin mining scandal was a scandal that involved the Indonesian state-owned mining enterprise PT Timah Tbk, which facilitated illegal mining activities in the Bangka Belitung Islands from 2015 to 2022. The environmental damage resulting from the scandal was estimated to have reached US$16.8 billion. It was also the biggest corruption scandal in the nation's history before being overtaken by the Pertamina corruption case in 2025.

Background The tin mining sector in Bangka Belitung can be traced back to the 7th century, when mining was mainly focused on Bangka Island. When the Dutch East India Company arrived in the city of Palembang, the Palembang Sultanate gave them a monopoly over the access of tin trade in Bangka. When a tin deposit was found in nearby Belitung Island, the Billiton Maatschappij was given the mining rights of the island, which continued beyond Indonesian independence in 1945 and finally ended when the company got seized and nationalized by Sukarno's government. In 1976, Suharto's New Order government established PT Timah Tbk to exploit the tin deposit in both Bangka and Belitung, which were both was still part of the province of South Sumatra at the time. Illegal tin mining began to thrive in the area after the fall of Suharto in 1998 due to deregulation in the post-Suharto era.

Events

Lead-up events According to some witnesses, the concession of tin mining under PT Timah Tbk began in 2015. PT Timah Tbk was said to have relied on illegal mining due to the depleting reserves on its onshore mining activities. The beginning of the main scheme could be traced to 2018, when two businessmen — Suwito Gunawan (also known as Awi) and Hasan Tjhie (also known as Asin) — made a pact to lend tin smelting equipment to PT Timah Tbk via their companies PT Stanindo Inti Perkasa and CV Venus Inti Perkasa. Other involved parties include Emil Ermindra, the financial director of PT Timah Tbk; Mochtar Riza Pahlevi Tabrani, director of PT Timah Tbk; and MB Gunawan, director of PT Stanindo Inti Perkasa. In the same year, coal businessman Harvey Moeis, who was then part of the acting delegation of PT Refined Bangka Tin, talked with Tabrani. The communication aimed to accommodate the illegal mining activities in the permitted mining region of PT Timah Tbk in order to make a bigger profit. Both Moeis and Tabrani hid the activities under the guise of leasing the tin smelting equipment. In order to execute the scheme, Moeis coordinated the transaction process and profit sharing of the illegal mine in an account run by his own syndicate.

Arrests The case was brought to back to the surface in 2024 when the Attorney General's Office of Indonesia found evidence of illegal mining activities supported by PT Timah Tbk which had been happening since 2018 using the fictional leasing scheme. After the irregularities were discovered, the Attorney General's Office began investigating PT Timah Tbk.

Mochtar Riza Pahlevi Tabrani From 2016 to 2024, Tabrani made deals with several businessmen to buy tin from companies that were given mining permits but were under the watch of PT Timah Tbk. In February 2024, the Attorney General's Office named Tabrani as a suspect for the tin mining permit corruption. He was immediately detained. The Attorney General's Office declared that the total loss of the scandal was 300 trillion rupiah (US$18.2 billion), with the total environmental damage amounting to 271 trillion rupiah (US$13.2 billion), the smelter leasing amounting to 2.2 trillion rupiah (US$133.6 million), and the cost of illegal tin costing 26 trillion rupiah (US$1.6 billion). While the investigation was occurring, Tabrani led PT Timah Tbk briefly. Despite his short stint as the leader, he was responsible for giving permits to companies which were illegally mining — this was regarded as manipulation of commodity trade. Evidence found included irregularities in the production data and financial reports. This was later deemed illegal.

Harvey Moeis On 27 March 2024, the Attorney General named Harvey Moeis as a suspect due to his role in PT Refined Bangka Tin, which had contacted Tabrani to make a deal regarding the operation of the illegal smelting facilities. The arrest attracted media attention due to Moeis being the husband of Indonesian actress and singer Sandra Dewi. Moeis was later sent to the South Jakarta Attorney General detention center for 20 days to be investigated. During the investigation, the Attorney General highlighted Moeis's role as the middleman between PT Refined Bangka Tin and PT Timah Tbk. During the illegal mining operation, Moeis called multiple smelting companies to participate. To launder the money, Moeis used the services of money changer and socialite Helena Lim to hide the trace of irregular transactions. In February 2025, Lim was sentenced to 10 years in prison. Moeis was sentenced to 6.5 years in prison by the Jakarta Corruption Court. Later, other judges lowered his sentence because of new findings stating that Moeis only helped PT Refined Bangka Tin connect with PT Timah Tbk and did not participate in their crimes. Moeis was also required to pay a 1 billion rupiah fine. Moeis would later appeal to the Jakarta Court to lower his sentence. However, his appeal demand was rejected, and he was eventually sentenced to 20 years in prison by Judge Teguh Harianto.

References

Worked examples

Example 1 — a first encounter with Indonesian tin mining scandal

Start with the simplest possible case. Write down what Indonesian tin mining scandal claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Indonesian tin mining scandal before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Indonesian tin mining scandal ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Indonesian tin mining scandal

In research: Indonesian tin mining scandal appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Indonesian tin mining scandal in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Indonesian tin mining scandal is common in secondary-school and first-year university syllabi. It links to neighbouring topics Corruption in Indonesia, Mining in Indonesia, Tin mining, so understanding it makes those chapters shorter.
In everyday life: Look for Indonesian tin mining scandal outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Indonesian tin mining scandal in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Indonesian tin mining scandal means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Indonesian tin mining scandal out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Indonesian tin mining scandal in simple terms?

Why does Indonesian tin mining scandal matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Indonesian tin mining scandal?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Indonesian tin mining scandal.