Equal · Financial Report

Sarana Menara Nusantara

TOWR/FY2021–FY2025/Educational Analysis/IDR/Data source · 2026-06-20

ROE = tax × interest × margin × turnover × leverage

	FY2021	FY2022	FY2023	FY2024	FY2025
Tax burden	0.84x	0.73x	0.75x	0.77x	0.75x
Interest burden	0.75x	0.66x	0.61x	0.58x	0.62x
Operating margin	62.8%	64.5%	60.8%	58.5%	58.9%
Asset turnover	0.13x	0.17x	0.17x	0.16x	0.17x
Leverage (equity mult.)driver	5.46x	4.55x	4.14x	4.06x	2.85x
= Return on Equity (consolidated)	28.4%	23.8%	19.7%	17.4%	13.6%
Return on Invested Capital (ROIC)	8.4%	8.8%	8.8%	8.1%	8.2%

Consolidated (pre-minority-interest) basis; the headline ROE in the ratio grid is owners’ basis.

Liquidity

	FY2021	FY2022	FY2023	FY2024	FY2025
Current Ratio(Current Assets / Current Liabilities)	0.34x	0.25x	0.18x	0.25x	0.18x
Quick Ratio((Current Assets − Inventory) / Current Liabilities)	0.34x	0.25x	0.18x	0.25x	0.17x
Cash Ratio(Cash / Current Liabilities)	0.22x	0.02x	0.02x	0.05x	0.03x
Working Capital(Current Assets − Current Liabilities)	-Rp 14 T	-Rp 11 T	-Rp 20 T	-Rp 15 T	-Rp 16 T

Leverage & Solvency

	FY2021	FY2022	FY2023	FY2024	FY2025
Debt to Equity (DER)(Total Debt / Total Equity)	3.91x	3.12x	2.72x	2.73x	1.67x
Liabilities to Equity(Total Liabilities / Total Equity)	4.46x	3.55x	3.14x	3.06x	1.85x
Debt to Assets(Total Debt / Total Assets)	0.72x	0.69x	0.66x	0.67x	0.59x
Net Debt(Total Debt − Cash)	Rp 42 T	Rp 45 T	Rp 45 T	Rp 51 T	Rp 45 T
Interest Coverage(EBIT / Interest Expense)	3.98x	2.97x	2.55x	2.39x	2.66x
Equity Multiplier (Assets ÷ Equity)	5.46x	4.55x	4.14x	4.06x	2.85x

Profitability

	FY2021	FY2022	FY2023	FY2024	FY2025
Gross Margin(Gross Profit / Revenue)	94.4%	94.5%	94.2%	92.9%	91.6%
Operating Margin(EBIT / Revenue)	62.8%	64.5%	60.8%	58.5%	58.9%
Net Margin(Net Income / Revenue)	39.7%	31.2%	27.7%	26.2%	27.6%
EBITDA(EBIT + D&A)	Rp 6.3 T	Rp 8.2 T	Rp 8.7 T	Rp 9.2 T	Rp 9.8 T
EBITDA Margin(EBITDA / Revenue)	72.9%	74.7%	74.2%	72.0%	73.3%
Return on Assets (ROA)(Net Income / Total Assets)	5.2%	5.2%	4.8%	4.3%	4.8%
Return on Equity (ROE)(Net Income (Owners) / Equity (Owners))	28.5%	23.9%	19.8%	17.5%	13.6%
Tax Burden (Net ÷ Pretax)	0.84x	0.73x	0.75x	0.77x	0.75x
Interest Burden (Pretax ÷ EBIT)	0.75x	0.66x	0.61x	0.58x	0.62x
Return on Invested Capital (ROIC)	8.4%	8.8%	8.8%	8.1%	8.2%

Operations & Efficiency

Turnover	FY2021	FY2022	FY2023	FY2024	FY2025
Asset Turnover(Revenue / Total Assets)	0.13x	0.17x	0.17x	0.16x	0.17x
Inventory Turnover(COGS / Inventory)	—	—	46.97x	56.36x	130.93x
Receivables Turnover(Revenue / Receivables)	3.98x	4.31x	3.80x	3.68x	6.20x
Payables Turnover(COGS / Payables)	0.92x	0.72x	0.57x	0.89x	0.94x

Conversion Period	FY2021	FY2022	FY2023	FY2024	FY2025
Days Inventory Outstanding (DIO)(365 × Inventory / COGS)	0.0 days	0.0 days	7.8 days	6.5 days	2.8 days
Days Sales Outstanding (DSO)(365 × Receivables / Revenue)	91.8 days	84.6 days	96.0 days	99.2 days	58.9 days
Days Payable Outstanding (DPO)(365 × Payables / COGS)	396.4 days	504.0 days	643.6 days	409.5 days	388.8 days
Cash Conversion Cycle (CCC)(DIO + DSO − DPO)	-304.6 days	-419.4 days	-539.9 days	-303.8 days	-327.2 days

Cash Flow

	FY2021	FY2022	FY2023	FY2024	FY2025
Free Cash Flow(Operating Cash Flow − Capex)	Rp 4.0 T	Rp 3.4 T	Rp 4.3 T	Rp 4.8 T	Rp 7.1 T

Valuation

price as-of 2026-07-31fundamentals: FY2025

Price Rp 404 · market cap Rp 23 T

Multiple	TOWR	Peer median	vs median
P/E	6.38x	8.65x	-26%
P/B	0.87x	0.87x	0%
P/S	1.76x	1.76x	0%
EV/EBITDA	6.98x	9.19x	-24%
EV/EBIT	8.68x	12.25x	-29%
EV/Sales	5.11x	5.11x	0%
FCF Yield	30.10%	12.97%	+132%
Dividend Yield	3.41%	4.48%(4/5)	-24%

EV = mkt cap Rp 23 T + debt Rp 45 T − cash Rp 648 M + minority interest Rp 111 M = Rp 68 T

What the price implies

At today’s price, the market is paying for 3.7%/yr FCF growth (0.8% at 12.0% to 6.5% at 16.0% discount rates). Delivered over the last 4 years: 15.3% FCF · 11.5% revenue.

Reverse DCF: single-stage FCF, terminal growth 2.5%, discount band 12.0–16.0% (β=1; build cited in Methodology). Not a forecast.

Forward DCF (glass-box)

This model projects the operating cash the whole business generates, discounts it back at the blended cost of capital, and subtracts net debt. What remains is the equity value, stated per share. Every input below comes from the company's own audited record or from cited market data, and you can adjust each one yourself.

Assumption	Value	Basis
Rf (risk-free)	7.26%	Indonesia 10Y government bond, 8 Jul 2026
ERP (Rm − Rf)	6.69%	Damodaran Indonesia, Jul 2026 (Baa2, CRP 2.46%)
β	0.68 → 1.66	Transportation (unlevered) relevered at own D/E 1.93
Cost of equity	18.38%	Rf + β × ERP
Cost of debt	6.52%	FY2025 interest expense ÷ total debt
Tax rate	25.0%	median effective rate, FY2021–FY2025 (pretax ≈ EBIT − interest)
WACC	9.50%	34% E × CoE + 66% D × Kd × (1 − t)
Revenue growth (yr 1, fading)	11.5%	delivered 4-yr revenue CAGR 11.5%, fading linearly to terminal
EBIT margin	59.4%	mean EBIT margin, last 3 FYs
D&A / revenue	13.8%	mean D&A/revenue, last 3 FYs
Capex / revenue	33.0%	mean capex/revenue, last 3 FYs, for the explicit years; in the terminal year capex falls to replacement level (equal to depreciation, 13.8% of revenue) because holding a build-phase or pause-phase ratio in perpetuity misprices the company in whichever direction that phase points
ΔNWC / Δrevenue	13.9%	median ΔNWC/Δrevenue across the seeded years (NWC = AR + inventory − AP)
Terminal growth	2.5%	BI inflation-target midpoint (2.5% ± 1%)

Growth path

year 1 → fading to terminal over 5 yrs11.5%

EBIT margin59.4%

WACC9.5%

Terminal growth2.5%

Explicit years5

Year	+1	+2	+3	+4	+5	T∞
Growth	11.5%	9.2%	7.0%	4.7%	2.5%	2.5%
Revenue	Rp 15 T	Rp 16 T	Rp 17 T	Rp 18 T	Rp 19 T	Rp 19 T
EBIT	Rp 8.8 T	Rp 9.6 T	Rp 10 T	Rp 11 T	Rp 11 T	Rp 11 T
NOPAT	Rp 6.6 T	Rp 7.2 T	Rp 7.7 T	Rp 8.1 T	Rp 8.3 T	Rp 8.5 T
+ D&A	Rp 2.0 T	Rp 2.2 T	Rp 2.4 T	Rp 2.5 T	Rp 2.6 T	Rp 2.6 T
− Capex	Rp 4.9 T	Rp 5.4 T	Rp 5.7 T	Rp 6.0 T	Rp 6.2 T	Rp 2.6 T
− ΔNWC	Rp 212 M	Rp 190 M	Rp 157 M	Rp 114 M	Rp 63 M	Rp 65 M
FCFF	Rp 3.5 T	Rp 3.9 T	Rp 4.2 T	Rp 4.5 T	Rp 4.7 T	Rp 8.4 T
PV	Rp 3.2 T	Rp 3.3 T	Rp 3.2 T	Rp 3.1 T	Rp 3.0 T	Rp 77 T

Check it yourself: revenue × margin = EBIT · NOPAT = EBIT × (1 − tax) · FCFF = NOPAT + D&A − Capex − ΔNWC · PV = FCFF ÷ (1+WACC)^yr · TV = FCFF(T∞) ÷ (WACC − g), discounted from year 5

EV = PV(explicit) Rp 16 T + PV(TV) Rp 77 T = Rp 92 T · TV 83% of EV · − net debt Rp 45 T − minority Rp 111 M

Model output: Rp 823/share (+104% vs price Rp 404)· exit-multiple check (9.2x): Rp 873

Under these assumptions the model lands 104% above today's price. The market, in other words, is paying for slower growth, a thinner margin, or a higher discount rate than the inputs here assume.

Sensitivity (per share, Rp)

g \ WACC	8.5%	9.5%	10.5%
2.0%	975	715	518
2.5%	1,122	823	599
3.0%	1,297	947	692

Model output under the stated assumptions. Every input above comes from the company's own audited record or from cited market data, and every one can be adjusted. This is not a price target and not advice.

Educational analysis. Multiples pair today’s price with the latest audited fiscal year (trailing-FY convention); peer figures are the covered peer sample, not the whole market. Never a price target.

Macro backdropfull backdrop + sensitivity map →

BI Rate 5.75%IDR/USD 18,05810Y government bond yield 7.26%Inflation 3.34%(as-of 2026-07-31)

BI rate ↑(M)GDP/consumption ↑(M)

Income Statement

	FY2021	FY2022	FY2023	FY2024	FY2025
Revenue	Rp 8.6 T	Rp 11 T	Rp 12 T	Rp 13 T	Rp 13 T
Cost of Goods Sold	Rp 480 M	Rp 608 M	Rp 684 M	Rp 899 M	Rp 1.1 T
Gross Profit	Rp 8.2 T	Rp 10 T	Rp 11 T	Rp 12 T	Rp 12 T
Operating Income (EBIT)	Rp 5.4 T	Rp 7.1 T	Rp 7.1 T	Rp 7.5 T	Rp 7.9 T
Interest Expense	Rp 1.4 T	Rp 2.4 T	Rp 2.8 T	Rp 3.1 T	Rp 2.9 T
Net Income	Rp 3.4 T	Rp 3.4 T	Rp 3.3 T	Rp 3.3 T	Rp 3.7 T
Net Income Attributable to Owners	Rp 3.4 T	Rp 3.4 T	Rp 3.3 T	Rp 3.3 T	Rp 3.7 T
Depreciation & Amortization	Rp 873 M	Rp 1.1 T	Rp 1.6 T	Rp 1.7 T	Rp 1.9 T

Balance Sheet

	FY2021	FY2022	FY2023	FY2024	FY2025
Cash & Equivalents	Rp 4.7 T	Rp 309 M	Rp 429 M	Rp 940 M	Rp 648 M
Accounts Receivable	Rp 2.2 T	Rp 2.6 T	Rp 3.1 T	Rp 3.5 T	Rp 2.1 T
Inventory	Rp 0	Rp 0	Rp 15 M	Rp 16 M	Rp 8.5 M
Current Assets	Rp 7.4 T	Rp 3.7 T	Rp 4.4 T	Rp 5.0 T	Rp 3.4 T
Total Assets	Rp 66 T	Rp 66 T	Rp 68 T	Rp 78 T	Rp 77 T
Accounts Payable	Rp 522 M	Rp 839 M	Rp 1.2 T	Rp 1.0 T	Rp 1.2 T
Current Liabilities	Rp 22 T	Rp 14 T	Rp 24 T	Rp 20 T	Rp 20 T
Total Liabilities	Rp 54 T	Rp 51 T	Rp 52 T	Rp 59 T	Rp 50 T
Total Interest-Bearing Debt	Rp 47 T	Rp 45 T	Rp 45 T	Rp 52 T	Rp 45 T
Total Equity	Rp 12 T	Rp 14 T	Rp 17 T	Rp 19 T	Rp 27 T
Equity Attributable to Owners	Rp 12 T	Rp 14 T	Rp 16 T	Rp 19 T	Rp 27 T

Cash Flow Statement

	FY2021	FY2022	FY2023	FY2024	FY2025
Operating Cash Flow	Rp 6.2 T	Rp 8.1 T	Rp 8.9 T	Rp 9.3 T	Rp 10 T
Capital Expenditure	Rp 2.2 T	Rp 4.7 T	Rp 4.6 T	Rp 4.5 T	Rp 3.3 T

Company Deep Analysis

Reviewed: 2026-07-24

Analyst Verdict

Sarana Menara Nusantara (TOWR) is the Djarum-backed, second-largest tower company in Indonesia, operating ~28,000 cell towers that it leases to the mobile operators (Telkomsel, XL, Indosat, Smartfren) under long-term colocation contracts (10–15 year initial terms with CPI escalators). The colocation model, where several tenants share the same tower, delivers near-vertical gross margins (91–94%), because the operating cost per tower is minimal once it is built; EBITDA margins run 72–74%. FCF has grown from Rp4.3tn to Rp7.1tn (FY23–25), and D/E dropped sharply from 2.73 to 1.67 in FY25 on deleveraging. ROIC of only 8% looks low, but that reflects the massive book value of ~28,000 towers rather than weak cash generation; the return metric that matters here is FCF yield. This is a toll-road-like infrastructure franchise with near-permanent revenue visibility, growing FCF and falling leverage, and what moves it is the tenancy ratio (how many operators sit on each tower) and 5G tower densification.

Business Model

TOWR builds or acquires cell towers and leases antenna space (slots) to mobile network operators under long-term colocation contracts. Key economics: the first tenant on a tower covers construction and site costs; each additional tenant (second, third) is nearly pure incremental margin; this is the "colocation leverage." Revenue = number of tenants × monthly lease rate × CPI escalation. Tenancy ratio ~1.5–1.6× (FY23–25) means most towers serve at least 1.5 operators on average. Backed by Djarum Group; listed on IDX.

Operating Model (Business Process)

01Sink capital into the tower (the upfront bet)
A tower is a one-time capital outlay (steel, land lease, permits), and TOWR carries ~28,000 of them, built or acquired: the +27.8% revenue jump from FY21 to FY22 came from buying tower portfolios.
EconomicsThat huge asset base is why ROIC looks low (~8%): the denominator is enormous. It reflects the size of the investment, not weak cash generation, so FCF yield, not ROIC, is the right lens here.
02Sign the anchor tenant to cover the cost
The first mobile operator (Telkomsel, XL, Indosat or Smartfren) leases antenna space on a 10–15 year contract with CPI escalators.
EconomicsThe rent from one tenant roughly covers the fixed running cost of the tower (land rent, power, maintenance). Below one tenant a tower bleeds; at one it about breaks even. Everything interesting happens above one.
03Stack more tenants on the same steel (the profit engine)
Extra operators bolt their antennas onto the tower already standing; a tenancy ratio of ~1.5–1.6× means most towers carry about 1.5 operators.
EconomicsThis is the whole game. A second tenant adds a full rent stream at almost zero extra cost, because the tower is already built and staffed, so ~85–90% of that rent drops to profit. This "colocation leverage" is why gross margin sits near 94% and EBITDA margin at 72–74%.
04Let the contracts escalate themselves
Leases embed CPI escalators, so the rent rises automatically every year across the 10–15 year term, with no new tower and no sales effort.
EconomicsRevenue compounds like an inflation-linked annuity, which is why the top line grew every single year (Rp8.6tn→Rp13.3tn) off a largely fixed asset base: predictable, contracted, low-churn.
05Turn the cash flow onto the debt
Towers are bought with debt; TOWR then points the rising cash flow at paying it down, cutting D/E from 3.91 to 1.67 across five years.
EconomicsInterest is the OTHER big cost (Rp2.8tn at its peak). Every rupiah of deleveraging shrinks that bill, which drops straight to net income and lifts free cash flow, from about Rp4.0tn toward Rp7.1tn by FY25. Leasing builds the cash; deleveraging keeps more of it.

Cost structureFixed, not variable. Nearly the entire cost of a tower is the one-time build; the ongoing site cost (land, power, maintenance) is small and roughly flat no matter how many tenants sit on it. So profit is driven by tenants-per-tower, not by revenue-linked cost, which is why each extra tenant flows almost straight to EBITDA. The one large variable cost is financial: interest on acquisition debt, which is why deleveraging matters as much as new leases.

Cash cycleFront-loaded, then annuity-like. Cash goes OUT first to build or buy the tower (capex ~Rp2.2–4.7tn a year), then returns over 10–15 years as contracted, CPI-escalating rent from a handful of large, creditworthy telcos, so receivables risk is low. Operating cash flow (Rp6.2tn→Rp10.4tn) reliably runs ahead of capex, and that widening gap IS the growing free cash flow that funds both the dividend and the debt paydown.

Unit economicsThink per tower. Tenant #1 is about breakeven (it just covers the tower site fixed cost); every tenant after that adds ~85–90%-margin revenue at almost no extra cost. A tower at ~1.5× tenancy is comfortably profitable; pushing toward the 2.0–2.5× that 5G densification could enable is the main upside lever, because it raises revenue on a cost base that is already paid for.

Segments

Tower rental (dominant: ~90%+ of revenue) from colocation leases to mobile operators, plus fiber backhaul services (smaller but growing). Gross margin 91–94%: tower site costs (land rental, electricity, maintenance) are minimal vs rental income. After depreciation (towers ~20 year life) and interest on tower acquisition debt, NM is 26–28%. EBITDA margin 72–74% is the cleanest measure of cash-generating power.

Value Chain & Positioning

Site identification and acquisition (land lease) → tower construction or acquisition → colocation contract signing with 2–3 operators → lease revenue with CPI escalation → maintenance → contract renewal / expansion. The value is created in the colocation model: a single tower with 3 tenants generates ~3× the revenue at ~1.1× the cost of a single-tenant tower; marginal tenancy is high-margin.

Competitive Forces (Porter’s 5)

Supplier powerLow

How much leverage input/funding providers have over pricing.

Tower construction is commoditized; steel and site costs are manageable. Land lease agreements for tower sites are typically long-term; landowner bargaining power is low once a site is leased.

Implication → Low input cost pressure; the primary capex is the tower itself (a one-time capital investment generating multi-decade revenue).

Buyer powerMedium

How much leverage customers have to push prices down.

The 4 major Indonesian telcos (Telkomsel, XL, Indosat, Smartfren) are TOWR's customer base: concentrated buyers. Competing tower companies (Mitratel/MTEL, TBIG) give them some switching leverage.

Implication → Long-term contracts (10–15 years) with built-in CPI escalators largely neutralize buyer power during contract periods; but renewal negotiation gives telcos some leverage on rates.

Threat of new entryLow

How easily new competitors can enter the market.

Building a competing ~28,000-tower network requires multi-trillion IDR capex and decades of site acquisition; telcos have largely exited tower ownership (preferring to focus on services). MNO in-sourcing is a theoretical risk but uneconomic.

Implication → Effectively a duopoly between TOWR and Mitratel/MTEL (with TBIG as 3rd); no new nationwide entrant is economically viable.

Threat of substitutesLow

Risk that alternative products/services replace demand.

No substitute for physical cell tower infrastructure for outdoor mobile coverage; small cells supplement but don't replace macro towers; satellite broadband (Starlink) is a partial substitute in remote areas only.

Implication → Structural demand for tower infrastructure is durable: 5G densification will increase tower count requirements, not reduce them.

Competitive rivalryMedium

Intensity of competition among existing players.

Three-player tower market: TOWR (~28k towers), Mitratel/MTEL (~35k), TBIG (~22k). Rivalry is for new co-location contracts and telco capital allocation decisions.

Implication → Competition constrains pricing on new contracts and renewals but does not threaten existing locked-in revenue; CPI escalators protect in-contract economics.

Moat / Competitive Edge

Narrow-to-medium. TOWR's moat is the scale of its ~28,000 tower network with long-term locked-in leases: incumbent towers are hard to displace because telcos rarely switch physical towers mid-contract. The CPI-escalating lease structure ensures real revenue growth with no effort. The structural tailwind: 5G rollout will require denser tower placement (smaller cells, more sites), expanding the addressable market. The constraint: the 3-player market limits pricing power on renewals; and ROIC at 8% is below typical infrastructure cost-of-capital, requiring continued FCF growth to create value.

Key Drivers & Sensitivities

Tenancy ratio (additional operators per existing tower)
Each incremental tenant on an existing tower adds ~85–90% gross margin revenue at near-zero additional cost. Current ~1.5–1.6× tenancy ratio is below the theoretical ~2.0–2.5× that densifying 5G could enable: this is the key long-term upside lever.
FCF growth from existing tower portfolio
FCF grew from Rp4.3tn (FY23) to Rp7.1tn (FY25): a 63% increase in 3 years. CPI escalators on existing contracts are the primary driver; new tower additions and tenancy growth add to this base.
Deleveraging (D/E 2.73→1.67)
D/E dropped sharply from 2.73 to 1.67 in FY25; interest cost reduction improves NM and FCF further. IC stable at 2.4–2.7× remains modest: continued deleveraging is important for financial resilience.
5G tower densification demand
5G requires denser cell sites (higher frequency, smaller coverage per tower): every Indonesian 5G upgrade cycle is a structural demand driver for more tower leases and higher tenancy ratios.
Telco capex cycle / ARPU health
Tower lease demand depends on telcos' willingness to expand/upgrade networks; telco ARPU compression or capex cuts (as in FY20–22 sector stress) can slow new tower lease uptake without breaking existing contracts.

Earnings Quality

Very high, and in an unusual direction: TOWR net income massively understates its cash generation. Because towers carry a large non-cash depreciation charge, operating cash flow runs about 2.8x net income (OCF/NI rose from 1.8x to 2.8x, FY21–25). So the modest reported net margin (~27%) and the low book ROIC (~8%) hide strong, growing cash economics, which is exactly why the right lens here is free cash flow, not accounting ROIC. No one-off items; the earnings are recurring, contracted lease income.

Checked: no material one-offs found in the reviewed window.

Cash conversionOperating cash flow is roughly 2.8x net income (FY25) because tower depreciation is a heavy non-cash charge. The accounting bottom line therefore understates the business: cash generation is far stronger than the P&L suggests, and it funds both the dividend and the debt paydown.

Capital Allocation

Builder: reinvests above the cost of capital

A builder shifting toward deleveraging. TOWR reinvests heavily, capex ran 25–42% of revenue building and acquiring towers, keeps the dividend low (payout ~23%), and has increasingly steered its growing cash flow into paying down debt (D/E 3.91→1.67). The book ROIC (~8%) looks below the cost of capital, but that reflects the enormous tower asset base rather than weak economics; the cash returns are strong.

DeploymentHeavy reinvestment in towers (capex 25–42% of revenue, easing to ~25% by FY25), a low ~23% dividend, and rising debt paydown; the FY25 shift (capex down, debt down) marks a maturing from aggressive build toward cash harvest.

Returns trendBook ROIC held flat at ~8% (thin on the massive asset base), while ROE fell every year (28.5%→13.6%) as retained earnings and equity outgrew net income. The real return signal is the growing free cash flow, not the accounting ratios.

Linkages

Linked to Indonesian mobile penetration (voice + data demand), telco capex cycles, 4G→5G network upgrade timelines, regulatory spectrum allocations, and BI interest rate (financing cost on tower debt). The Djarum group (banking via BCA, consumer goods) provides strategic backing. TOWR competes primarily with Mitratel (Telkom subsidiary) and Tower Bersama (TBIG).

Recent Developments

FY21–25 (five fiscal years): revenue grew every year, Rp8.6tn→Rp11.0tn→Rp11.7tn→Rp12.7tn→Rp13.3tn, with the +27.8% FY21→22 step reflecting acquisition-led portfolio growth. Gross margin held near-vertical (94.4%→91.6%, a slight recent compression) and EBITDA margin stayed 72–75%. Net margin compressed materially from 39.7% (FY21) to ~27% (FY23–25) as acquisition debt loaded interest expense (Rp1.4tn→Rp2.8tn). ROE fell every year, 28.5%→23.9%→19.8%→17.5%→13.6%: equity compounded faster than net income, which stayed roughly flat at Rp3.3–3.7tn across the window. The offset is sustained deleveraging (D/E 3.91→3.12→2.72→2.73→1.67) and FCF that dipped in FY22 on peak acquisition capex (Rp4.7tn) then grew strongly to Rp7.1tn by FY25. ROIC held ~8%, AT stable at ~0.17×. The five-year view reframes the trend: a stable, cash-generative franchise steadily trading leverage for equity, its declining ROE reflecting that de-risking rather than weakening economics.

Regulation

Subject to Indonesian telecommunications tower regulation: tower-sharing obligations (PUPR/Kominfo regulations requiring operators to share towers), spectrum licensing (for tenant operators), safety standards (PUPR structural requirements), and local government zoning/permitting for tower construction. OJK capital market rules apply to listed bonds and equity. Listed on IDX.

ESG & Sustainability

Material issues: tower placement community impact (aesthetic, EMF concerns), shared tower policy compliance (reducing infrastructure duplication), energy consumption (tower sites use diesel generators in remote areas; a carbon and cost issue). Governance: Djarum group control; minority investor protections are key watch items. Social: rural tower deployment extends connectivity to underserved communities.

Red-Flag Protocol

Accounting returns vs cashwatch
Book ROIC (~8%) sits at or below a typical infrastructure cost of capital, so on accounting numbers TOWR looks value-neutral; the investment case rests on free-cash-flow yield, not reported ROIC. Know which lens you are using.
Leveragewatch
Even after cutting D/E from 3.91 to 1.67, leverage is still meaningful and interest coverage is modest (~2.4–2.7x); a debt-funded tower model is rate-sensitive.
Customer concentrationwatch
Revenue depends on a handful of telco tenants (Telkomsel, XL, Indosat, Smartfren); telco consolidation would shrink the pool of colocation customers.
Earnings qualitynone found
High: contracted, CPI-escalating lease income, and operating cash flow runs ~2.8x net income (depreciation is non-cash). No one-offs.

Risks

Telco consolidation reducing the number of potential co-location tenants
Slower-than-expected 5G rollout limiting tenancy ratio improvement
Interest rate sensitivity on remaining high leverage (D/E still 1.67 after the FY25 drop)
Regulatory tower-sharing mandates potentially pressuring lease rates on renewal
Satellite broadband (Starlink) partially substituting fixed wireless / rural towers

Outlook & What to Watch

A structurally advantaged tower infrastructure company with near-permanent revenue visibility (long-term contracts, CPI escalators), strong FCF growth trajectory (Rp7tn+ by FY25) and a clear 5G densification tailwind. ROIC at ~8% is the core risk: below cost of capital on a book-value basis, but FCF yield tells a better story. Deleveraging from D/E 2.73 to 1.67 in FY25 is a positive inflection; continued debt reduction will improve NM and financial resilience. (Interpretation, not a forecast.)

Key KPIs

Tenancy Ratio: Avg operators per tower (~1.5–1.6×): key margin lever
EBITDA Margin: 72–74%: cash-generating power of the tower portfolio
FCF: Rp4.3tn→Rp7.1tn (FY23→FY25): accelerating
D/E: 2.72→1.67: sharply deleveraging in FY25
Tower Count: ~28,000 towers: scale and market position

Sources

Curated narrative (educational interpretation), backed by the linked sources. The figures above are deterministic. Not investment advice.