Howard Marks put it nicely when he said that, rather than worrying about share price volatility, ‘The possibility of permanent loss is the risk I worry about… and every practical investor I know worries about.’ So it might be obvious that you need to consider debt, when you think about how risky any given stock is, because too much debt can sink a company. As with many other companies Tokyo Seimitsu Co., Ltd. (TSE:7729) makes use of debt. But is this debt a concern to shareholders?

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