The external fund manager backed by Berkshire Hathaway's Charlie Munger, Li Lu, makes no bones about it when he says 'The biggest investment risk is not the volatility of prices, but whether you will suffer a permanent loss of capital.' When we think about how risky a company is, we always like to look at its use of debt, since debt overload can lead to ruin. Importantly, Xiamen Tungsten Co.,Ltd. (SHSE:600549) does carry debt. But is this debt a concern to shareholders?

When Is Debt A Problem?

Debt is a tool to help businesses grow, but if a business is incapable of paying off its lenders, then it exists at their mercy. If things get really bad, the lenders can take control of the business. However, a more common (but still painful) scenario is that it has to raise new equity capital at a low price, thus permanently diluting shareholders. Of course, plenty of companies use debt to fund growth, without any negative consequences. When we examine debt levels, we first consider both cash and debt levels, together.

How Much Debt Does Xiamen TungstenLtd Carry?

You can click the graphic below for the historical numbers, but it shows that Xiamen TungstenLtd had CN¥12.1b of debt in September 2024, down from CN¥13.5b, one year before. However, because it has a cash reserve of CN¥3.98b, its net debt is less, at about CN¥8.10b.

A Look At Xiamen TungstenLtd's Liabilities

We can see from the most recent balance sheet that Xiamen TungstenLtd had liabilities of CN¥13.7b falling due within a year, and liabilities of CN¥7.48b due beyond that. Offsetting these obligations, it had cash of CN¥3.98b as well as receivables valued at CN¥7.75b due within 12 months. So its liabilities outweigh the sum of its cash and (near-term) receivables by CN¥9.47b.

This deficit isn't so bad because Xiamen TungstenLtd is worth CN¥29.1b, and thus could probably raise enough capital to shore up its balance sheet, if the need arose. But we definitely want to keep our eyes open to indications that its debt is bringing too much risk.

We use two main ratios to inform us about debt levels relative to earnings. The first is net debt divided by earnings before interest, tax, depreciation, and amortization (EBITDA), while the second is how many times its earnings before interest and tax (EBIT) covers its interest expense (or its interest cover, for short). This way, we consider both the absolute quantum of the debt, as well as the interest rates paid on it.

Xiamen TungstenLtd's net debt to EBITDA ratio of about 1.9 suggests only moderate use of debt. And its commanding EBIT of 33.4 times its interest expense, implies the debt load is as light as a peacock feather. Xiamen TungstenLtd grew its EBIT by 6.2% in the last year. That's far from incredible but it is a good thing, when it comes to paying off debt. When analysing debt levels, the balance sheet is the obvious place to start. But ultimately the future profitability of the business will decide if Xiamen TungstenLtd can strengthen its balance sheet over time. So if you want to see what the professionals think, you might find this free report on analyst profit forecasts to be interesting.

Finally, a business needs free cash flow to pay off debt; accounting profits just don't cut it. So we clearly need to look at whether that EBIT is leading to corresponding free cash flow. Over the last three years, Xiamen TungstenLtd recorded negative free cash flow, in total. Debt is far more risky for companies with unreliable free cash flow, so shareholders should be hoping that the past expenditure will produce free cash flow in the future.

Our View

Neither Xiamen TungstenLtd's ability to convert EBIT to free cash flow nor its level of total liabilities gave us confidence in its ability to take on more debt. But the good news is it seems to be able to cover its interest expense with its EBIT with ease. Looking at all the angles mentioned above, it does seem to us that Xiamen TungstenLtd is a somewhat risky investment as a result of its debt. That's not necessarily a bad thing, since leverage can boost returns on equity, but it is something to be aware of. There's no doubt that we learn most about debt from the balance sheet. But ultimately, every company can contain risks that exist outside of the balance sheet. These risks can be hard to spot. Every company has them, and we've spotted 2 warning signs for Xiamen TungstenLtd you should know about.

If you're interested in investing in businesses that can grow profits without the burden of debt, then check out this free list of growing businesses that have net cash on the balance sheet.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.