When close to half the companies in China have price-to-earnings ratios (or "P/E's") above 27x, you may consider Guangdong Liantai Environmental Protection Co.,Ltd. (SHSE:603797) as a highly attractive investment with its 10.9x P/E ratio. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's so limited.

For example, consider that Guangdong Liantai Environmental ProtectionLtd's financial performance has been poor lately as its earnings have been in decline. One possibility is that the P/E is low because investors think the company won't do enough to avoid underperforming the broader market in the near future. However, if this doesn't eventuate then existing shareholders may be feeling optimistic about the future direction of the share price.

Is There Any Growth For Guangdong Liantai Environmental ProtectionLtd?

The only time you'd be truly comfortable seeing a P/E as depressed as Guangdong Liantai Environmental ProtectionLtd's is when the company's growth is on track to lag the market decidedly.

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 34%. This means it has also seen a slide in earnings over the longer-term as EPS is down 19% in total over the last three years. Accordingly, shareholders would have felt downbeat about the medium-term rates of earnings growth.

Comparing that to the market, which is predicted to deliver 42% growth in the next 12 months, the company's downward momentum based on recent medium-term earnings results is a sobering picture.

In light of this, it's understandable that Guangdong Liantai Environmental ProtectionLtd's P/E would sit below the majority of other companies. Nonetheless, there's no guarantee the P/E has reached a floor yet with earnings going in reverse. Even just maintaining these prices could be difficult to achieve as recent earnings trends are already weighing down the shares.

What We Can Learn From Guangdong Liantai Environmental ProtectionLtd's P/E?

Using the price-to-earnings ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

As we suspected, our examination of Guangdong Liantai Environmental ProtectionLtd revealed its shrinking earnings over the medium-term are contributing to its low P/E, given the market is set to grow. At this stage investors feel the potential for an improvement in earnings isn't great enough to justify a higher P/E ratio. If recent medium-term earnings trends continue, it's hard to see the share price moving strongly in either direction in the near future under these circumstances.

Plus, you should also learn about this 1 warning sign we've spotted with Guangdong Liantai Environmental ProtectionLtd.

If you're unsure about the strength of Guangdong Liantai Environmental ProtectionLtd's business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

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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.