Indonesia Mining Investment Guide: IUP License and Foreign Ownership

A foreign investor closing a mining exploration deal in Kalimantan structured his PT PMA around 100 percent foreign ownership, a genuine and current legal right under Indonesia’s Positive Investment List. He treated it as permanent. It was not. The moment his license moved from exploration into production operation, a divestment clock the investment memo had never mentioned started running, one that would eventually require handing 51 percent of the company to Indonesian ownership regardless of how the shareholding was originally structured.

That gap between what is legally available at the start and what actually survives to the production stage is the single most important thing to understand before structuring any foreign mining investment in Indonesia.

Two Ownership Realities, Divided by One Milestone

Under the current Positive Investment List, established through Presidential Regulation No. 10 of 2021 and amended by Presidential Regulation No. 49 of 2021, mining business activities are open to 100 percent foreign ownership at the point of incorporation. How that list works at the classification level, and how mining compares to other sectors that carry their own conditional caps, is explained in more depth in a separate breakdown of what replaced Indonesia’s Negative Investment List. This mining-specific opening is real and currently in force, and it applies from the exploration stage through the early life of a mining PT PMA. What changes is what happens once that license reaches Operation Production, IUP OP, and the company has enjoyed the economic benefits of commercial mining activity for a defined period.

At that point, Article 112(1) of Law No. 4 of 2009 on Mineral and Coal Mining, as amended by Law No. 3 of 2020, requires foreign shareholders to gradually divest down to a maximum of 49 percent foreign ownership, meaning Indonesian participants must hold at least 51 percent. Government Regulation No. 96 of 2021, specifically Article 147(2)(d)(6), sets the backstop timeline, requiring Indonesian ownership to reach that 51 percent threshold by the 25th year following the start of production activity. A foreign investor evaluating a mining opportunity in Indonesia is not looking at a single ownership structure. They are looking at two, one that applies during exploration and early development, and a materially different one that the law requires once the operation matures into sustained commercial production.

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IUP, IUPK, and the Licensing Ladder Underneath Ownership

Indonesia’s mining licensing system runs through a small number of core instruments, each carrying its own scope. The IUP (Izin Usaha Pertambangan) is the general mining business license most foreign investors work with, issued separately for the exploration phase and the operation production phase. The IUPK (Izin Usaha Pertambangan Khusus) is a special mining business license, historically tied to the conversion of older Contracts of Work into the current licensing framework, and typically covering larger, more strategically significant mining areas. A third category, IPR (Izin Pertambangan Rakyat), covers community mining and sits largely outside the foreign investment conversation entirely.

Who Gets First Right of Refusal When Divestment Comes Due

When the divestment obligation is triggered, the law sets a specific offering sequence rather than leaving the foreign holder free to sell to whichever Indonesian buyer offers the best terms. Shares have to be offered first to the central government, then regional government, then state-owned enterprises, then regional government-owned enterprises, and finally national private business entities. Notably, an IUP holder with more than 49 percent foreign ownership is permitted to transfer those shares to a third party even before the formal divestment deadline arrives, provided the shares are first offered to a state-owned enterprise under this same right of first refusal sequence. That flexibility matters for a foreign investor weighing an earlier, voluntary partial sale against waiting for the mandatory deadline to force the same outcome on less favorable terms. A share transfer of this scale also has to clear the same shareholder approval threshold any major structural change in a PT PMA requires, a quorum question covered in full in XPND’s guide to restructuring a PT in Indonesia. 

The 2024 Amendment Changed the Clock, Not the Destination

Indonesia’s fourth amendment to the Mining Law, approved in February 2024, adjusted how this divestment timeline actually operates without changing the underlying 51 percent requirement itself. The strict rule that previously anchored divestment to a fixed early deadline was relaxed, allowing the process to occur in phases, with further implementation details left to subsequent regulation. For coal specifically, holders of Coal Contracts of Work gained an additional benefit under the same amendment, two further ten-year extensions on their operating term, even where the contract had already been renewed once before, a meaningful stability improvement for long-horizon coal investments specifically.

What did not change is the destination. Foreign investors sometimes read the loosened timeline as a signal that the 51 percent requirement itself is softening. It is not. The amendment changed how gradually a company can get there, not whether it eventually has to.

Hilirisasi Turns the Divestment Clock Into a Negotiating Lever

Indonesia’s downstream processing policy, hilirisasi, gives mining areas preferential allocation to companies that invest in value added processing, smelting and refining, rather than raw ore extraction alone. This is not a minor incentive. For a foreign investor willing to commit capital to domestic processing infrastructure, that commitment becomes part of the broader negotiating position around licensing terms and, in practice, around how a company approaches its eventual divestment obligation as well. Two real examples illustrate how this plays out at scale. Freeport Indonesia’s 2018 restructuring transferred a 51 percent stake to Indonesian state ownership as part of resolving its long-running Contract of Work conversion. Vale Indonesia’s 2023 divestment agreement transferred an additional 14 percent stake to state mining holding company MIND ID, lifting Indonesian state ownership in that company to 34 percent, executed specifically as part of converting its IUPK ahead of a 2025 contract expiration. Both cases show the same underlying pattern, foreign mining investment in Indonesia is genuinely open at the front end, and the terms of eventual Indonesian participation get negotiated in the context of downstream investment commitments rather than resisted outright.

What This Means for Structuring a New Mining PT PMA

Bringing the ownership timeline, the licensing ladder, and the downstream investment angle together, a grounded approach for a foreign mining investor looks like this.

• Model the divestment obligation into the company’s capital structure and investor agreements from incorporation, rather than treating it as a future problem to solve once production begins
• Confirm which license type, IUP or IUPK, actually applies to the intended project, since the two carry different histories and, in the case of IUPK, different strategic considerations
• Evaluate whether committing to downstream processing or smelting investment changes the practical negotiating position around future divestment terms, given the preferential treatment hilirisasi policy extends to processing investment
• Structure any anticipated early share transfer around the state-owned enterprise right of first refusal, rather than assuming a private sale is available without first testing that offer
• For any acquisition of an existing mining license, review the full divestment history and remaining obligations before closing, a due diligence step covered in more depth in XPND’s guide to mergers and acquisitions in Indonesia

None of these steps are unusual individually. What causes the most damage is treating exploration-stage ownership terms as the permanent structure, when Indonesian mining law was built from the outset to treat that structure as temporary.

XPND’s investment structuring team works with foreign mining investors to build the divestment timeline into the original investment plan rather than discovering it as a surprise once production begins, and to evaluate whether a downstream processing commitment changes the practical terms available at that stage. A mining investment that looks fully foreign owned on day one was never actually built to stay that way, and the investors who plan for that from the outset are the ones who negotiate the eventual transition on their own terms rather than the state’s.