Inalum Raih Peringkat BBB- Outlook Stabil dari S&P Global Ratings

JAKARTA — PT Indonesia Asahan Aluminium (Persero), commonly known as INALUM, has achieved a significant milestone on the global financial stage. The state-owned enterprise (SOE) has been assigned an international credit rating of BBB- with a stable outlook by S&P Global Ratings. This rating officially places INALUM within the coveted investment grade category, reinforcing its financial resilience, strategic importance to the Indonesian state, and pivotal role in the nation’s ambitious mineral downstreaming and industrial transformation roadmap.

The announcement comes at a crucial juncture for the company as it prepares to scale up its capital expenditure and funding requirements to support a series of massive industrial expansion projects scheduled between 2026 and 2029.

1. Main Facts: Key Drivers Behind the Investment Grade Rating

The S&P Global Ratings assessment, published on September 7, 2026, highlights several foundational strengths that enabled INALUM to secure the investment grade distinction:

• Sovereign and Group Support: S&P heavily factored in INALUM’s strategic positioning within the MIND ID (Mining Industry Indonesia) holding group, the state-owned holding entity for the country’s mining sector. The rating agency also weighed the implicit and explicit backing of the Indonesian government, emphasizing INALUM’s critical role in national resource security and economic policy.
• Cost Efficiency and Green Energy Integration: A standout element of the S&P evaluation is INALUM’s world-class operational cost structure. The company currently operates within the first quartile of the global cost curve. This cost competitiveness is largely driven by its heavy reliance on stable, renewable hydroelectric power, which shields the company from the volatile fossil-fuel-driven energy costs plaguing global competitors.
• Domestic Supply Chain Integration: By securing domestic raw material pipelines—most notably through its majority stake in PT Borneo Alumina Indonesia (BAI)—INALUM has successfully mitigated its historical reliance on imported alumina, strengthening its balance sheet against geopolitical and logistical disruptions.
• Robust Financial Governance: Despite embarking on capital-intensive expansion cycles, INALUM has maintained strict financial discipline, ensuring that its growth strategy is balanced with robust operational fundamentals and strong corporate governance.

2. Chronology: A Trajectory of Domestic and International Accolades

INALUM’s recent credit rating achievements reflect a multi-year consolidation of its financial health, operational discipline, and strategic execution.

• 2023–2025 (The Consolidation Phase): For three consecutive years, domestic rating agency PEFINDO maintained INALUM’s national credit rating at idAA-/Stable. During this period, the company focused on optimizing its existing primary aluminum smelter operations in Kuala Tanjung, North Sumatra, while laying the groundwork for vertical integration through the construction of domestic alumina refineries.
• August 2026 (Domestic Upgrade): Reflecting its strengthening financial profile and successful risk management, PEFINDO upgraded INALUM’s national scale rating by one notch, elevating it from idAA-/Stable to idAA/Stable. This domestic upgrade signaled to the market that INALUM’s creditworthiness had matured significantly.
• September 7, 2026 (Global Validation): S&P Global Ratings published its official assessment, awarding INALUM a BBB- rating with a stable outlook. This international investment grade rating crowned a busy year of corporate development, setting the stage for broader access to international capital markets.
• September 11, 2026 (Official Corporate Statement): INALUM’s top management formally addressed the market regarding the S&P rating, framing it as both an endorsement of past performance and a solemn responsibility to execute upcoming National Strategic Projects (PSN) with unyielding financial prudence.

3. Supporting Data: Operational Capacities, Financial Metrics, and Cost Advantages

To fully understand the weight of S&P’s investment grade rating, one must examine the hard operational metrics underpinning INALUM’s business model.

Production Capacities and Refinement Infrastructure

• Primary Aluminum Smelter: INALUM currently operates a primary aluminum smelting facility with an annual production capacity of approximately 275,000 tons.
• Smelter-Grade Alumina Refinery 1 (SGAR 1): Through its majority ownership in PT Borneo Alumina Indonesia (BAI)—a joint venture with PT Aneka Tambang Tbk (ANTAM)—INALUM operates the SGAR 1 facility in Mempawah, West Kalimantan. This facility boasts an annual production capacity of 1 million tons of alumina, effectively ending the company’s dependency on foreign alumina imports and creating a closed-loop domestic supply chain.

Cost Competitiveness and Environmental Synergy

S&P Global Ratings paid close attention to INALUM’s position on the global cost curve. Operating in the first quartile means INALUM is among the lowest-cost aluminum producers globally. This cost advantage is derived from two primary factors:

1. Hydropower Generation: INALUM harnesses the natural water flow of Lake Toba via hydroelectric power plants (Asahan waterfalls), providing a long-term, low-cost, and zero-carbon energy source.
2. Carbon Efficiency: The reliance on hydroelectric power not only suppresses operational expenditures related to energy procurement but also drastically reduces the company’s carbon footprint. In an era where global metal markets increasingly penalize carbon-heavy production (such as coal-reliant smelters in other jurisdictions), INALUM’s green aluminum positioning commands a distinct competitive edge.

4. Official Responses and Leadership Vision

Reacting to the international rating milestone, INALUM President Director Melati Sarnita emphasized that achieving investment grade status is a testament to the collective hard work of the company’s workforce, its parent holding MIND ID, and the Indonesian government. However, she was quick to stress that the company’s leadership views the achievement not as a destination, but as a framework for future accountability.

"This investment grade rating is both an acknowledgment and a profound responsibility for INALUM to continuously safeguard the company’s performance in a prudent and sustainable manner," Melati stated in an official release on Friday, September 11, 2026.

"Amidst our aggressive expansion and downstreaming agenda, we will ensure that our growth does not merely chase scale. Instead, it must be built upon robust operational fundamentals, strict financial discipline, and uncompromisingly strong corporate governance."

Melati further elaborated on the strategic necessity of upcoming projects, noting that the international validation arrives at the exact moment when INALUM requires diversified, cost-effective global financing to fund its pipeline from 2026 to 2029.

5. Implications: Fueling the 2026–2029 Downstreaming Roadmap and National Strategic Projects

The attainment of a BBB- investment grade rating carries profound implications for INALUM’s strategic trajectory, particularly regarding its capital deployment for Indonesia’s national downstreaming mandates.

Unlocking Global Capital Markets

For an emerging-market state-owned enterprise, securing an investment-grade rating from a major global agency like S&P is a game-changer. It fundamentally broadens INALUM’s investor base, allowing the company to tap into international bond markets, multilateral development banks, and global syndicated loans at significantly lower borrowing costs. This financial leverage is vital as the company prepares for multi-billion-dollar outlays.

Accelerating the 2026–2029 Expansion Cycle

Between 2026 and 2029, INALUM is tasked with executing critical phases of Indonesia’s mineral downstreaming policy. Among the most prominent initiatives highlighted by management are:

• SGAR Phase 2 (SGAR 2): Building upon the success of Mempawah’s SGAR 1, the development of SGAR 2 is designed to add another 1 million tons of annual alumina production capacity, effectively doubling Indonesia’s domestic alumina refining output and solidifying raw material independence.
• Smelter Aluminum 2 (Smelter 2): Running parallel to SGAR 2, this project is classified as a National Strategic Project (PSN). It aims to substantially scale up primary aluminum smelting capacity, transforming Indonesia from a raw bauxite exporter into a high-value finished aluminum manufacturing hub.

Strengthening the National Value Chain

The integration of upstream bauxite mining (via ANTAM and MIND ID), midstream alumina refining (via BAI), and downstream aluminum smelting (via INALUM) creates an insulated, highly resilient domestic industrial ecosystem. By insulating the domestic manufacturing sector from global supply chain shocks—such as those experienced during geopolitical crises or pandemics—INALUM ensures that Indonesian industries ranging from automotive to construction and electrical engineering have a secure, locally sourced supply of green aluminum.

Conclusion

The assignment of a BBB- investment grade rating with a stable outlook by S&P Global Ratings—coupled with PEFINDO’s domestic upgrade to idAA—marks a coming-of-age for PT Indonesia Asahan Aluminium (Persero). By combining low-cost, renewable hydroelectric energy with a disciplined approach to capital allocation and aggressive vertical integration, INALUM has proven its mettle as a cornerstone of Indonesia’s modern industrial economy.

As the company accelerates its National Strategic Projects through 2029, this financial validation ensures that INALUM is well-positioned to drive the nation’s mineral downstreaming agenda forward on a foundation of global competitiveness, environmental stewardship, and robust financial integrity.