Issuer Summary: PT Bank Mandiri (Persero) Tbk

1. Credit View and Monitoring Focus

PT Bank Mandiri (Persero) Tbk (“Bank Mandiri”) is one of Indonesia’s largest banks and, based on total assets at end-2025, the largest listed state-owned commercial bank. The essence of its credit profile is not that of a fast-growing retail bank, but rather its franchise as a “national core bank” combining corporate and commercial banking, retail deposits, payments and digital infrastructure, and the government-related ecosystem. From a bond investor’s perspective, the bank should be viewed as an investment-grade bank credit in which standalone commercial bank credit quality overlaps with support expectations arising from government control and policy importance.

In conclusion, Bank Mandiri’s credit quality is stable. In 1Q2026, on the assumption of pro forma comparisons after the deconsolidation of Bank Syariah Indonesia (BSI), loan growth, deposit growth, cost discipline, and asset quality have not materially deteriorated. At end-March 2026, consolidated loans were IDR1,614tn, third-party deposits were IDR1,730tn, and total assets were IDR2,433tn, representing year-on-year growth of 16.2%, 21.0%, and 16.5%, respectively. Consolidated NIM was 4.70%, the NPL ratio was 1.02%, the Tier 1 ratio was 18.8%, and CAR was 19.7%, indicating a thick layer of fundamental strength as a bank credit.

That said, the assessment is not unconditionally bullish. First, the company’s 2026 guidance indicates loan growth of 7-9%, adjusted NIM of 4.5-4.7%, and credit cost of 0.6-0.8%, with NIM guided slightly lower than the previous 4.6-4.8% range. This indicates that liquidity, deposit competition, and downward pressure on loan yields remain the main issues in the Indonesian banking system. Second, from 2025 to 2026, the ownership structure has changed to one involving Danantara Asset Management and BP BUMN. While government control is maintained, investors should not conflate “government ownership” with an explicit guarantee on individual bonds.

This report’s base view is to position Bank Mandiri as a “large commercial bank credit with proximity to the Indonesian sovereign.” The bank is not a national infrastructure company responsible for the supply of electricity or fuel itself, unlike PLN or Pertamina. However, its systemic importance is extremely high through domestic payments, corporate finance, transactions with state-owned enterprises and large corporates, retail deposits, and digital financial infrastructure. Accordingly, government support expectations are strong. However, support expectations are a separate issue from a legal guarantee on individual senior bonds; they support ratings, market confidence, and depositor confidence.

From an investment perspective, Bank Mandiri can be assessed as a defensively strong IG bank supported by high capital ratios, a low NPL ratio, a deep deposit base, and one of the largest domestic franchises. The downside, on the other hand, lies in scenarios where the bank overpursues loan growth while NIM compression persists, asset quality deteriorates with a lag, deposit costs rise again, or perceptions of the Indonesian sovereign and support for state-owned banks worsen. At present, there are no strong signs of material credit impairment. However, from 2026 onward, the focus has shifted from “strength of growth” to “quality of growth” and the simultaneous maintenance of deposits, capital, and provisioning.

2. Business Snapshot: What is Bank Mandiri?

Bank Mandiri is an Indonesian state-owned commercial bank and a universal bank combining corporate and commercial banking, SME, micro, consumer finance, payments, digital channels, and subsidiary financial services. Based on total assets at end-2025, external calculations using IDX data put its assets at IDR2,829.95tn, making it the largest listed bank in Indonesia. In terms of business model, it is neither simply a retail bank, nor an investment bank, nor a dedicated policy finance institution. Its largest earnings base consists of deposit-funded lending and payments/fee income, and it is a core commercial bank with a broad customer base spanning the government, state-owned enterprises, large corporates, and retail customers.

The bank’s current ownership structure is important for understanding its character as a state-owned bank. In its 1Q2026 presentation, the shareholder composition as of March 2026 is shown as Government of RI at 52.0%, Indonesia Investment Authority (INA) at 8.0%, foreign investors at 29.7%, domestic institutional investors at 5.8%, and domestic retail investors at 4.6%. A note in the same materials states that the majority of shares have been transferred to Danantara, while BP BUMN holds the Series A share. External reports indicate that, in March 2025, the government transferred 52% of BMRI’s Series B shares to Danantara’s operating holding company, and that in January 2026, an equivalent 0.52% stake was transferred to BP BUMN. Economically and institutionally, government control is maintained, but direct ownership, indirect ownership, special shares, and government guarantees need to be understood separately.

In business terms, Bank Mandiri has exposure to large Indonesian corporates, commercial banking customers, SMEs, micro and payroll loans, mortgages, credit cards, auto loans, and subsidiary financial services. In bank-only loans at end-March 2026, wholesale lending to corporate and commercial customers is large, and growth is also strongly supported by the corporate and commercial segments. In company materials, loan growth as of March 2026 is presented for both related-party and non-related-party lending, with an emphasis on growth aligned with government programs and ecosystem value chains.

Bank Mandiri’s distinctiveness lies not only in its scale and proximity to the government. Through retail digital infrastructure such as Livin' by Mandiri, corporate digital and cash management infrastructure such as Kopra by Mandiri, its branch and agent networks, and its subsidiaries, the bank connects customer deposits, payments, borrowing, investments, insurance, payroll, and commercial flows. This matters for credit quality more than simple loan balances. In bank credit, the depth of customer relationships translates into deposit stability, fee income, cross-selling, and loan selection capacity.

At the same time, Bank Mandiri is not “the government itself.” The issuer is a listed commercial bank, is supervised by OJK and Bank Indonesia, and participates in the LPS deposit insurance scheme. Government control and systemic importance create strong support expectations, but the ranking of individual bonds, loss-absorption clauses, regulatory capital characteristics, and the presence or absence of a government guarantee differ by security. Therefore, even if issuer credit quality is strong, the investment assessment is not identical across senior bonds, Tier 2, AT1, and other capital instruments.

3. What Changed Recently

The most important recent development is that 1Q2026 results continued to show good profitability and asset quality on the new basis, including comparisons after the deconsolidation of BSI. 1Q2026 PATMI was IDR15.383tn, up 16.6% year-on-year in the company materials. Total operating income rose 9.1%, operating expenses were contained to a 7.0% increase, and the cost-to-income ratio improved to 38.2% from 39.0% in the same period of the previous year. NIM was 4.70%, down only 5bp year-on-year, supported on a bank-only basis by a decline in deposit costs to 1.97% despite falling loan yields.

At the same time, the company has set cautious 2026 guidance. Loan growth is guided at 7-9%, adjusted NIM at 4.5-4.7%, and credit cost at 0.6-0.8%. The adjustment of NIM guidance from the previous 4.6-4.8% range indicates that liquidity and loan competition in Indonesia’s banking sector remain difficult. In 2024, the market was already concerned that liquidity tightness and rising funding costs would weigh on Bank Mandiri’s NIM outlook, and in 2026, lower deposit costs are partly offsetting this pressure. Even so, loan yields are under pressure from competition and weaker demand, and NIM is not risk-free.

In terms of asset quality, the consolidated NPL ratio at end-March 2026 was 1.02%, while the bank-only NPL ratio was 0.98%, remaining at a very low level. The Loan at Risk ratio was 6.02% on a consolidated basis, while NPL coverage was 237% consolidated and 245% bank-only. Coverage has declined compared with 2025, but the company has described around 240% as a comfortable level, and provisioning insufficiency is not the main issue at this point. Rather, the point requiring attention is that in phases of strong loan growth, problem loans tend to emerge with a lag, so the current low NPL ratio alone should not be used as a final judgment on asset quality.

Changes in ownership structure are also a new issue. In March 2025, shares of several state-owned listed companies, including Bank Mandiri, were transferred to Danantara. In January 2026, it was reported that an equivalent 0.52% stake in BMRI was transferred from Danantara Asset Management to BP BUMN, advancing an institutional reorganization related to the Dwiwarna share. In the 1Q2026 materials, a note states that a majority of the shares have been transferred to Danantara, while BP BUMN holds the Series A share. From a credit perspective, the maintenance of government control is not a major change, but the support route, supervision, and the role of the government-related holding company need to be monitored continuously.

On ratings, as of April 20, 2026, Fitch’s International Long-Term Rating was BBB and its National Long-Term Rating was AAA(idn), Moody's long-term deposit and long-term debt ratings were Baa2, and S&P rated the bank BBB/Stable/A-2. These ratings combine an assessment of the Indonesian sovereign, banking system, and government support expectations with Bank Mandiri’s standalone franchise, capital, and profitability. Recent results are consistent with this rating level, but if the view on Indonesia’s sovereign rating or support for state-owned banks changes, international ratings and foreign-currency bond spreads could react first.

4. Industry Position and Franchise Strength

Bank Mandiri’s industry position lies in its status as a large commercial bank with one of Indonesia’s largest asset, loan, and deposit bases. Based on external calculations using end-2025 IDX data, BMRI’s total assets were IDR2,829.95tn, exceeding BRI’s IDR2,135.37tn, BCA’s IDR1,586.83tn, and BNI’s IDR1,362.05tn. In the company’s 1Q2026 materials as well, consolidated total assets at end-March 2026 were IDR2,433tn, third-party deposits were IDR1,730tn, and loans were IDR1,614tn, indicating overwhelming scale as a domestic bank.

However, the credit strength cannot be sufficiently captured by the single word “largest.” Bank Mandiri’s real strength lies in the fact that corporate and commercial banking, state-owned enterprise and government-related transactions, retail deposits, digital payments, and subsidiary financial services are connected as one ecosystem. Corporate customers use not only loans, but also payroll, payments, cash management, trade finance, FX, and supply-chain finance. Retail customers extend from salary receipt to deposits, remittances, payments, consumer loans, investments, and insurance. This transaction depth enhances the stability of the deposit base and fee income.

Compared with peers, Bank Mandiri is not as specialized in microfinance as BRI, nor is it as purely focused on the low-cost deposit premium of private-sector large corporates and transaction banking as BCA. It has greater scale and a deeper corporate and government-related franchise than BNI. Accordingly, it is most naturally categorized as a “large state-owned universal bank” that captures broad economic activity across the sovereign, state-owned enterprises, infrastructure, corporates, and individuals. This breadth increases loan growth opportunities during economic expansions and provides defensive strength through deposits and customer base during slowdowns.

At the same time, being a large state-owned bank also entails risks. Government programs, lending to state-owned enterprises, related-party lending, and infrastructure, construction, and energy-related exposures may not always be explainable purely by commercial economics. In the 1Q2026 materials, part of loan growth is supported by related-party lending, and the company cites alignment with government programs and ecosystem value chains as growth drivers. This is a strength of proximity to the government, but also a reason to check credit concentration, policy pressure, and the risks of individual large-ticket exposures.

Bank Mandiri’s franchise is also strong in deposits. At end-March 2026, consolidated third-party deposits were IDR1,730tn, CASA was IDR1,215tn, and the CASA ratio was 70.2%. Although the CASA ratio declined from the same period of the previous year, the absolute amount increased. This shows that the bank is able to maintain low-cost deposits even amid intensifying competition in the deposit market. In bank credit, the quantity and quality of deposits are as important as capital-market access, and Bank Mandiri has one of the strongest positions domestically in this respect.

5. Segment Assessment

In segment assessment, it would be a mistake to view Bank Mandiri simply as a retail bank. In loan growth as of March 2026, wholesale lending, meaning corporate and commercial, plays a large role. In the bank-only loan composition, Corporate is shown at around 50%, Commercial at around 20%, Retail at around 25%, and subsidiaries and others accounting for the remainder. Corporate and commercial lending are not only large in outstanding balance, but are also linked to the funding needs of Indonesia’s large corporates, state-owned enterprises, infrastructure, construction, energy, water transportation, telecommunications, mining, and related sectors.

The strength of the Corporate segment lies in customer business scale, transaction depth, and proximity to the government and state-owned enterprise ecosystem. Large corporates have relationships with banks not only through lending, but also through FX, cash management, payroll, trade, supply chains, and bond and market transactions. As a result, relationships are less likely to be lost purely because of price competition. From a credit perspective, this brings stable earnings and large deposits and payments, but the loss impact can be large if an individual large borrower deteriorates. Sectors such as construction, real estate, energy, water transportation, and mining, which are susceptible to Indonesia’s economic cycle, commodity conditions, and policy, require continued monitoring.

Commercial and SME are the middle layer of Bank Mandiri’s ecosystem-based growth. These segments support the working capital needs of large-corporate supply chains, regional commerce, wholesale and retail, services, and manufacturing, but their economic sensitivity tends to be higher than that of top-tier corporates. SME credit quality is managed through collateral, transaction history, cash-flow visibility, and the use of payment data. If the bank can use digital channels and supply-chain data to improve credit selection, this segment can contribute to both profitability and diversification. However, in an economic slowdown, problem loans tend to emerge with a lag, making it necessary to monitor not only the NPL ratio but also special mention, Loan at Risk, and restructured loan balances.

Micro and payroll loans and consumer lending have both growth and credit-cost dimensions. The bank-only materials as of end-March 2026 show micro lending including KUM and KUR, KSM payroll loans, mortgages, credit cards, and auto loans. Micro and payroll loans contribute to customer acquisition and social financial inclusion through links with government support programs and salary accounts. On the other hand, unsecured or small-ticket diversified portions are more sensitive to economic deterioration and employment deterioration. The company’s statement in its 2026 guidance that it is “cautious on the retail NPL outlook” reflects this risk.

In consumer finance, mortgages account for more than half of consumer loans, followed by credit cards, auto loans, and others. Mortgages are collateralized and tend to be relatively stable, but they are affected by interest rates, housing prices, and household income. Credit cards are highly profitable but highly sensitive to unemployment and income deterioration. Auto loans partly run through subsidiaries or joint financing, and are affected by collateral value, used-car prices, and interest rates. At present, retail growth is restrained, and the company’s prioritization of quality is credit positive.

Digital, payments, and fee businesses are important as a supplementary line to net interest income. The 1Q2026 materials show recurring digital fees, non-digital recurring fees, treasury income, cash recoveries, and other items within non-interest income, with recurring digital fee income growing year-on-year. In bank credit, non-interest income is unlikely to fully offset pressure on net interest income, but it is meaningful as an indicator of customer relationship depth and transaction volume. The growth of Livin' and Kopra should be assessed not simply as IT investment, but as infrastructure that bundles deposits, payments, lending, and fees.

The subsidiaries complement the group’s earnings and customer base, including Mandiri Sekuritas, insurance, multi-finance, Bank Mandiri Taspen, and the BSI stake. In 1Q2026 consolidated comparisons, BSI has been deconsolidated, so caution is needed in historical comparisons. BSI remains an important associate as an Islamic bank, but its removal from consolidated metrics changes the way Bank Mandiri’s NIM, loans, deposits, and capital metrics should be viewed. Investors need to distinguish between pro forma comparisons and the actual equity-method, dividend, and capital relationships.

6. Financial Profile

Bank Mandiri’s financial profile shows strength befitting a leading domestic bank across profitability, asset quality, capital, and deposits. At the same time, the focus from 2026 onward is whether these indicators can be maintained simultaneously during a phase of loan growth. In 1Q2026, on a pro forma comparison excluding BSI from consolidation, total assets, loans, and deposits grew, NIM was broadly flat, credit cost declined, and cost efficiency improved. This indicates not only single-year profitability, but also that the quality of balance sheet management has been maintained.

The key indicators are as follows. 1Q2026 is based on the company’s 1Q26 Results Presentation dated April 21, 2026, while end-2025 uses a combination of bank-only comparisons from the same materials and company/external calculations. Some consolidated indicators are presented on a pro forma basis excluding BSI from consolidation, so definitional differences need to be considered in strict time-series comparisons.

Profitability is strong. PATMI was IDR56.295tn for full-year 2025 and IDR15.383tn in 1Q2026, maintaining a high level of earnings even on a quarterly run-rate basis. ROA was 2.34% and ROE was 20.4% in 1Q2026, both sufficiently high for a bank credit. The strength of profitability is important not simply as a high shareholder return, but as the capacity to absorb credit costs and internally generate capital.

NIM is the most important item to monitor. Consolidated NIM in 1Q2026 was 4.70%, down only 5bp year-on-year, but the company has explicitly noted pressure on loan yields. Bank-only loan yield declined from 7.64% in 1Q2025 to 7.11% in 1Q2026, while deposit cost declined from 2.37% to 1.97%. In other words, NIM stability is being supported by lower deposit costs. If deposit competition intensifies again, making deposit costs less likely to decline, while loan yields fall, pressure on earnings would increase.

Asset quality is very strong at present. At end-March 2026, the consolidated NPL ratio was 1.02% and the bank-only ratio was 0.98%, below the Indonesian banking industry average. Loan at Risk was 6.02%, improving from 7.21% in the same period of the previous year. The special mention ratio also declined year-on-year to 3.08%. These figures indicate that credit risk management is functioning even amid strong loan growth. However, in periods of high growth, deterioration in underwriting quality can appear with a lag of several quarters. Therefore, going forward, it will be necessary to look not only at the NPL ratio, but also at special mention, LaR, restructuring, write-offs, and flows of downgrades to NPL at the same time.

Capital is thick. At end-March 2026, the consolidated Tier 1 ratio was 18.8% and CAR was 19.7%, while on a bank-only basis Tier 1 was 18.5% and CAR was 19.7%. This provides a sufficient buffer to absorb normal increases in credit costs and NIM compression. For a large state-owned bank such as Bank Mandiri, the capital ratio is not simply a measure of regulatory compliance; it also supports the confidence of depositors, bond investors, and rating agencies. Especially for a bank with large government-related lending and large corporate exposures, capital headroom is also important in supporting management conservatism.

Liquidity and funding are also good. The CASA ratio is in the low 70% range, and third-party deposits increased 21.0% year-on-year. LDR was 90.4% consolidated and 90.9% bank-only, which does not indicate excessive reliance on market funding. LCR and NSFR have remained well above 100% in the company materials, and there is still regulatory liquidity headroom as of 1Q2026. That said, as the market was concerned in 2024, if liquidity in the Indonesian banking sector tightens, even large state-owned banks will come under pressure on funding costs and NIM. Whether the company can maintain its policy of deposit growth supporting loan growth is an important point to verify going forward.

Overall, Bank Mandiri’s financial profile can be summarized as that of a large bank with high profitability, but for which NIM and asset quality should continue to be monitored carefully. Single-year earnings are strong, capital is thick, and NPLs are low. However, high loan growth is not always positive in itself. For credit investors, the key is whether loans, deposits, NIM, NPLs, and capital are moving healthily in the same direction. At present, that balance is being maintained, but 2026 will be a year in which this equilibrium is tested.

7. Structural Considerations for Bondholders

From a bond investor’s perspective, Bank Mandiri is relatively straightforward as an operating bank issuer. The main earnings, assets, deposits, and regulatory capital are in the bank itself, unlike the structural subordination seen in US and European-style structures where a holding company sits above the operating bank. For senior bonds, the issuer’s commercial banking franchise, deposit base, capital, and liquidity provide direct credit support.

However, bank liabilities have repayment ranking and regulatory loss-absorption hierarchy. The risks differ materially across deposits, senior unsecured bonds, subordinated bonds, Tier 2, AT1, and other capital instruments. Even if Bank Mandiri’s issuer rating is investment grade, for regulatory capital instruments, non-viability, write-down, conversion, coupon cancellation, and regulatory discretion become central to the investment assessment. The public materials reviewed for this report do not examine the terms of individual bonds.

Government control is also a structural issue for bondholders. The relationship among the government, Danantara Asset Management, BP BUMN, and the Series A Dwiwarna share supports control and policy support expectations. However, this does not automatically mean that all bonds carry an explicit government guarantee. For senior bond investors, government support expectations support spreads, but legal claims depend on the issuer and the securities contract. Government-guaranteed bonds and bonds issued by government-related issuers are different instruments.

Attention is also needed regarding the position of BSI and other subsidiaries and associates. The deconsolidation of BSI removes some items from consolidated financial indicators, while equity interests, dividends, and strategic relationships may remain. If subsidiaries or associates require capital support, the impact could flow through to the parent bank’s capital and earnings. No major concern is evident at present, but bond investors should check capital allocation across the group as a whole.

8. Capital Structure, Liquidity and Funding

Bank Mandiri’s capital structure and funding are central to its credit quality. The consolidated Tier 1 ratio of 18.8% and CAR of 19.7% at end-March 2026 are sufficiently thick, and bank-only ratios are at similar levels. This capital level provides room to absorb a normal economic slowdown, higher retail NPLs, and higher corporate credit costs. For a large state-owned bank, thick capital is also directly linked to maintaining the confidence of depositors and bond investors.

On liquidity, the deposit-led funding structure is strong. At end-March 2026, third-party deposits were IDR1,730tn consolidated and IDR1,675tn bank-only; on a bank-only basis, they were broadly flat versus end-2025 but up 21.1% year-on-year. The CASA ratio was 70.2% consolidated and 71.7% bank-only, indicating depth in low-cost deposits. LDR was 90.4% consolidated and 90.9% bank-only, meaning loans are not excessively above deposits.

The strength of this funding structure lies in its support for NIM. In 1Q2026, loan yields declined, but deposit costs fell to 1.97%, allowing NIM to be maintained at 4.70%. This shows that the depth of the deposit base is also benefiting the P&L. However, the CASA ratio has declined year-on-year, and time deposits have also increased. If deposit competition intensifies again, the share of low-cost deposits could decline further and NIM could come under pressure.

Wholesale funding has a complementary role. At end-March 2026, consolidated wholesale funding was IDR285tn, up 10.8% year-on-year, while bank-only wholesale funding was IDR251tn, up 15.6% year-on-year. As long as deposits remain the core funding source, an increase in wholesale funding is not immediately a risk, but during periods of rising interest rates or worsening market conditions, it can become a channel for higher funding costs. If the bank has foreign-currency debt or international market funding, FX, hedging, maturities, and investor base need to be checked individually.

In capital policy, Bank Mandiri is a listed bank with high ROE and attractive dividends. Shareholder returns are important for equity investors, but for bond investors, the focus is whether dividends excessively reduce internal capital accumulation. At present, given the CAR of 19.7% and the level of earnings, the dividend burden appears manageable. However, if loan growth is strong, credit costs rise, and the payout ratio is also high, the pace of decline in capital headroom needs to be monitored.

9. Rating Agency View

Bank Mandiri’s ratings indicate market recognition as a large investment-grade bank. According to the company’s IR ratings page, as of April 20, 2026, Fitch Ratings assigned an International Long-Term Rating of BBB, a National Long-Term Rating of AAA(idn), and a National Short-Term Rating of F1+(idn). PEFINDO assigned a Long Term General Obligation rating of idAAA as of September 22, 2025. Moody's assigned a long-term counterparty risk rating of Baa1, long-term deposit rating of Baa2, and long-term debt rating of Baa2 as of February 16, 2026. S&P assigned an Issuer Credit Rating of BBB/Stable/A-2 as of January 15, 2026.

This rating positioning shows that Bank Mandiri’s credit quality is strong on a standalone basis, while also being both capped and supported by Indonesia’s sovereign, banking system, and government support expectations. Domestic ratings are close to the highest level, but international ratings are constrained by the sovereign rating, foreign-currency risk, and the banking system environment. Therefore, domestic rupiah bond investors and foreign-currency bond investors focus on different risks, even for the same issuer.

The factors likely assessed by rating agencies include one of the largest domestic franchises, government control, systemic importance, strong profitability, capital, deposit base, and low NPLs. Constraints, on the other hand, include Indonesia’s sovereign and macro environment, banking system liquidity, NIM compression pressure, the policy role as a state-owned bank, and sovereign linkage in foreign-currency bonds. My own credit view is broadly consistent with this assessment.

Downward pressure on ratings could come not only from a rapid deterioration in standalone financials, but also from changes in the sovereign rating or the view of government support. If the outlook on Indonesia’s foreign-currency sovereign rating deteriorates and questions arise over support capacity for state-owned banks or policy consistency, Bank Mandiri’s international bond spreads could widen even if standalone NPLs remain low. Conversely, even if standalone indicators are good, rating upside may be limited by the sovereign constraint.

10. Credit Positioning

Among Asian investment-grade banks, Bank Mandiri sits between a “high-profitability, high-growth large Indonesian state-owned bank” and a “core financial-system issuer with sovereign proximity.” It has higher growth and ROE than a conservative corporate bank such as Thailand’s Bangkok Bank, but it is not as fully anchored to the sovereign as state-owned banks in China or Korea. This is a credit through which investors take exposure to Indonesia’s macro growth, banking penetration, digitalization, and government programs.

Within Indonesian quasi-sovereigns, PLN and Pertamina are directly linked to national functions through electricity and fuel supply, and their issuance volume and liquidity are also large. Bank Mandiri is not an energy or infrastructure operating company of that kind, but it sits at the core of the financial system and the state-owned enterprise ecosystem. Accordingly, its policy importance is high, but the channels through which credit risk manifests are not fuel price compensation or electricity tariffs, but deposits, lending, NIM, asset quality, regulatory capital, and perceptions of sovereign support.

Among peer banks, Bank Mandiri is most naturally compared with BRI, BCA, and BNI. BRI has strength in microfinance, BCA has low-cost deposits and high asset quality as a private-sector bank, and BNI has a corporate and international network as a state-owned bank. Within this group, Bank Mandiri’s strengths are the size of its total assets, loans, and government-related franchise, together with the balance of profitability and capital. For credit investors, it is an accessible core name for exposure to large Indonesian banks.

In relative value, for foreign-currency bonds, it needs to be compared with Indonesian government bonds, PLN, Pertamina, other state-owned banks, and large ASEAN banks. If Bank Mandiri’s spread is wider than the sovereign or PLN/Pertamina, this may reflect bank subordination, foreign-currency bond liquidity, security hierarchy, and differences in investor base. A wider spread does not automatically mean the bonds are cheap. Particularly for Tier 2 and capital instruments, a premium is required not only for issuer credit but also for loss-absorption provisions.

As an investment stance, Bank Mandiri can be summarized as “an IG bank that provides exposure to Indonesian growth while being protected by one of the country’s largest state-owned bank franchises and capital bases.” Its strengths are high ROE, low NPLs, deposit base, and government control. Its constraints are sovereign linkage, NIM pressure, policy lending, and lagged deterioration in large corporate and retail NPLs. The practical focus for investment judgment is how much bank and liquidity premium the spread pays relative to the Indonesian sovereign and PLN/Pertamina.

11. Key Credit Strengths and Constraints

Bank Mandiri’s greatest strength is one of Indonesia’s largest commercial banking franchises. By combining corporate and commercial banking, state-owned enterprises, retail deposits, digital payments, and subsidiary financial services, it has an earnings base that is not dependent on a single segment. The scale of IDR1,614tn in loans, IDR1,730tn in deposits, and IDR2,433tn in total assets at end-March 2026 demonstrates its importance within the domestic financial system.

The second strength is profitability and capital. ROA of 2.34%, ROE of 20.4%, and PATMI of IDR15.383tn in 1Q2026 demonstrate capacity to absorb credit costs and NIM pressure. The Tier 1 ratio of 18.8% and CAR of 19.7% are also thick, providing a sufficient buffer against a normal economic slowdown. The fact that the bank is able to maintain regulatory capital while also delivering shareholder returns as a listed bank is positive.

The third strength is deposits and liquidity. A CASA ratio in the low 70% range, LDR around 90%, and regulatory headroom in LCR and NSFR are important defensive lines for bond investors. Even if a bank’s earnings are strong, credit quality can deteriorate easily if deposits are unstable. Bank Mandiri has funding strength supported by a broad customer base and government, corporate, and retail transactions.

The fourth strength is government control and policy importance. Even after the ownership structure shifted to one involving Danantara/BP BUMN, the structure indicates that the Indonesian government maintains ultimate control and has special rights through the Series A Dwiwarna share. This supports confidence among depositors, investors, and rating agencies. As a systemically important state-owned bank, it is natural to view the likelihood of support in an emergency as high.

The first constraint is NIM and the liquidity environment. If lower loan yields, deposit competition, and tighter macro liquidity occur at the same time, earnings will come under pressure. In 1Q2026, this was offset by lower deposit costs, but this condition may not persist indefinitely. The second constraint is the quality of loan growth. Loan growth in 1Q2026 was strong, but risks may emerge with a lag in state-owned enterprises, related parties, construction, energy, real estate, micro, and consumer lending.

The third constraint is the two-sided nature of government linkage. Government control raises support expectations, but policy lending, government programs, lending to state-owned enterprises, and cooperation with economic policy could weaken purely risk-return-based judgment. At present, there are no signs that Bank Mandiri’s credit discipline has broken down. However, as a state-owned bank, the balance between policy mandates and credit risk management needs to be monitored.

The fourth constraint is the difference in terms across individual bonds. Even if the issuer is strong, the risks differ across senior, subordinated, Tier 2, and AT1 instruments. Even with strong government support expectations, regulatory loss absorption takes priority for capital instruments. Therefore, after evaluating Bank Mandiri as an issuer credit, investors should always reassess it by security layer.

12. Downside Scenarios and Monitoring Triggers

The most realistic downside is not sudden deposit outflows or capital insufficiency, but a scenario in which NIM compression and deterioration in the quality of loan growth accumulate over several quarters. Loan yields decline due to competition and weaker demand, deposit costs stop falling, and at the same time NPLs rise with a lag in retail, SME, construction, real estate, and energy-related exposures. In this case, even if PATMI is initially maintained, credit costs, NPLs, LaR, and special mention would gradually deteriorate, ultimately affecting capital and the ratings tone.

The second downside is stress in related-party, state-owned enterprise, and large corporate lending. Bank Mandiri’s corporate and commercial banking franchise is a strength, but deterioration at individual large borrowers has a larger loss impact than small-ticket diversified retail exposures. In sectors such as construction, infrastructure, energy, water transportation, mining, financial services, and real estate, which are affected by policy, commodity markets, interest rates, and FX, it is necessary to confirm whether loan growth is accompanied by quality.

The third downside is deterioration in perceptions of sovereign and government support. If Indonesia’s fiscal position, policy consistency, foreign-exchange reserves, or investor sentiment deteriorate, placing downward pressure on the sovereign rating or outlook, Bank Mandiri’s foreign-currency bond spreads would also be affected. Even if standalone NPLs and CAR are good, the international ratings of state-owned banks are subject to sovereign constraints. The manifestation of this risk differs between domestic bonds and foreign-currency bonds.

The fourth downside is a change in the government-related holding and supervisory structure. As long as the control structure through Danantara, BP BUMN, and the Series A Dwiwarna share is operated stably, there is no major credit concern. However, if the government support route becomes less transparent, policy burdens on state-owned banks increase, or dividend and capital policies become excessively driven by fiscal considerations, investors will need to reassess both support expectations and standalone credit quality.

The monitoring items are clear. First, monitor NIM, loan yield, deposit cost, and the CASA ratio. Second, check the loan growth rate by segment, related-party/non-related-party classification, and sector. Third, monitor the NPL ratio, special mention, LaR, restructuring, write-offs, downgrades to NPL, and NPL coverage. Fourth, check Tier 1, CAR, dividends, and RWA growth. Fifth, track rating actions by Fitch, Moody's, S&P, and PEFINDO, the Indonesian sovereign outlook, and ownership or supervisory changes related to Danantara/BP BUMN.

Bank Mandiri’s credit quality is strong at present, but banks with many sources of comfort are precisely the ones where early signs of deterioration can be overlooked. The situation requiring the most caution would be one in which NIM compression, deterioration in deposit mix, an increase in LaR, a decline in NPL coverage, and a decline in capital ratios occur simultaneously. A small deterioration in a single indicator does not require a change in the credit view. However, if multiple indicators begin to deteriorate in the same direction, the current assessment of a “large, highly profitable bank with strong sovereign proximity” will need to be retested.

13. Short Summary & Conclusion

Bank Mandiri is one of Indonesia’s largest state-owned commercial banks and a core national bank combining corporate and commercial banking, retail deposits, payments and digital infrastructure, and the government-related ecosystem. It is a stable investment-grade bank credit supported by thick capital, low NPLs, strong deposits and liquidity, government control, and systemic importance. The direction is stable, but for foreign-currency bonds, linkage with the Indonesian sovereign and banking-system liquidity also needs to be considered. Investors should distinguish between standalone commercial bank credit and government support expectations, and monitor NIM, CASA, special mention, LaR, restructuring, Tier 1/CAR, dividends, RWA growth, the sovereign outlook, and ownership and supervisory changes related to Danantara/BP BUMN.

14. Sources

Confirmed Key Sources

• Bank Mandiri, 1Q 2026 Results Presentation, Jakarta, April 21, 2026
  https://www.bankmandiri.co.id/documents/38265486/0/1Q26%2BAnalyst%2BMeeting%2B-%2BLong%2BForm%2B%2812%29.pdf/f0913f15-e9ae-d6a3-9692-815875e130d7?t=1776915343898
• Bank Mandiri IR, Corporate Presentations page, accessed May 7, 2026
  https://www.bankmandiri.co.id/en/web/ir/corporate-presentations
• Bank Mandiri IR, Quarterly Financials page, accessed May 7, 2026
  https://www.bankmandiri.co.id/en/web/ir/quarterly-financials
• Bank Mandiri IR, Credit Ratings page, accessed May 7, 2026
  https://www.bankmandiri.co.id/en/web/ir/credit-ratings
• Bank Mandiri IR, Annual Report & Sustainability Report page, accessed May 7, 2026
  https://www.bankmandiri.co.id/web/ir/annual-reports
• Bank Mandiri IR, Audited Financials page, accessed May 7, 2026
  https://www.bankmandiri.co.id/web/ir/audited-financials
• Katadata Databoks, "10 Listed Banks with the Largest Assets in Indonesia at the End of 2025," May 4, 2026
  https://databoks.katadata.co.id/en/market/statistics/69f86bfb612f0/10-listed-banks-with-the-largest-assets-in-indonesia-at-the-end-of-2025
• Katadata Databoks, "Bank Mandiri (BMRI) Profit Rises 16% in Q1 2026," April 24, 2026
  https://databoks.katadata.co.id/en/market/statistics/69eaf48547e47/bank-mandiri-bmri-profit-rises-16-in-q1-2026
• IDNFinancials, "Danantara operational holding receives 52% of BMRI shares," March 24, 2025
  https://www.idnfinancials.com/news/53384/danantara-operational-holding-receives-52-of-bmri-shares
• IDNFinancials, "BMRI shares transferred, transaction worth up to IDR 60.67 billion," January 7, 2026
  https://www.idnfinancials.com/news/60212/bmri-shares-transferred-transaction-worth-up-to-idr-60-67-billion

Unconfirmed Items / Topics Requiring Additional Research

1. Prospectus terms for each individual bond, including ranking, negative pledge, cross default, change of control, non-viability, write-down, and the presence or absence of a government guarantee.
2. A precise 2023-2025 consolidated time-series table after locally saving the 2025 annual report and audited financial statements. In particular, comparisons aligned for the impact of BSI deconsolidation.
3. Pillar 3, detailed LCR/NSFR, maturity ladder, and foreign-currency funding and hedging status as of end-March 2026.
4. Detailed asset quality of related-party lending, lending to state-owned enterprises, and government-program-related lending.
5. Breakdown of sectoral NPLs, special mention, LaR, restructuring, and write-offs.
6. Live spreads by foreign-currency bonds, rupiah bonds, subordinated bonds, and capital instruments, and relative value versus Indonesian government bonds, PLN, Pertamina, BRI, BNI, and BCA.
7. The latest legal and supervisory framework regarding Danantara / BP BUMN / Series A Dwiwarna share, and its implications for the government support route.