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PT Amman Mineral Internasional Tbk

AMMN.JK
55
Other Precious Metals · Basic Materials
Price
4860.00 IDR
+50.00 (+1.04%)
Market Cap
351.92T IDR
Exchange
Indonesia Stock Exchange
Winston Score
55
Winston is curious
A decent business — some strong pillars, some weaker.
Data as of Sep 13, 2026 · filings through Mar 31, 2026

§How the score breaks down

Quality
Good
Growth
Good
Cash Flow
Weak
Stability
Mixed
Valuation
Good
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Share count rising — dilution

+10.5% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 65.59B (2021) → 72.46B (2025)

§Winston Score History

The full picture

PT Amman Mineral Internasional is an Indonesian mining company that produces copper and gold. Its main asset is the Batu Hijau mine, one of the largest copper-gold mines in the world, located on the island of Sumbawa in Indonesia. The company sells these metals to global commodity buyers and smelters.

Amman Mineral earns revenue by extracting and selling copper concentrate, which also contains gold as a byproduct. It operates primarily in Indonesia and is one of the country's largest mining companies by market value. The company benefits from owning a large, long-life ore body with relatively low production costs. Key growth drivers include expanding underground mining operations and rising global demand for copper, which is essential for electrification and renewable energy infrastructure, though commodity price swings and Indonesian regulatory changes remain notable risks.

Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

>+1,000% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

+215.8% YoY

YoY Growth Rate

EPS growth accelerating

R&D Spend

$0/ year

0.0% of revenue

Below sector average (3%)

Research and development spending

Insider Activity

81.2%ownership

Insiders own a meaningful stake in the company

Cash Position

Cash flow positive

$1.5B cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Company generates more cash than it spends — no dilution risk from fundraising

Revenue accelerating

PT Amman Mineral Internasional Tbk grew revenue 37642% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Profit per sale
Gross Margin
41.0%
Healthy — 41.0% gross margin
Profit after running costs
Operating Margin
38.9%
Excellent — 38.9% operating margin
Return on the money invested
ROCE
9.1%
Below par — 9.1% return on capital

ROIC between 5% and 15%. They earn 5 to 15 cents back per year on every dollar invested.

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Growth

Sales growth
Sales YoY
+27.8%
Fast-growing sales (+27.8% YoY)
Profit growth
EPS YoY
+49.0%
Earnings growing fast (+49.0% YoY)

Earnings growing 25%+ a year. The compounder zone.

How steady the profit is
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Profit that turns into cash
Cash Conversion
-1%
Weak — only -1% of profit becomes cash
Spare cash per sale
FCF Margin
-42.6%
Burning cash (-42.6%)

Free cash flow is negative. They are burning cash, not generating it.

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Stability

What it owes vs what it owns
Debt / Equity
1.18
Elevated debt (1.18)
Covers its interest
Interest Cover
2.54x
Tight — interest eats into profit (2.5x)

Interest coverage between 1 and 3. Profits cover interest, but with little room to spare.

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Valuation

Price vs profit
P/E Ratio (TTM)
36.3x
Pricey — P/E 36.3

P/E over 35. The market is pricing in heavy, sustained growth.

Cheaper or dearer next year
P/E vs Forward
+23.4
GROWING
Earnings expected to grow meaningfully — cheaper on forward P/E (36.3 → 12.9)

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Dividends

Not applicable for this business.
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