Investors' belief in the company's strong revenue growth outperforming the industry may explain the high P/S ratio. However, overpayment for the stock is a risk if this doesn't occur. The company's three-year revenue trends and shareholder confidence in stable revenue contribute to the high P/S.

Mongolian Mining's lack of earnings growth, despite a high ROE and stock price increase, is worrisome. The company's retention of all profits without business growth may be due to negative external factors. Further risk assessment is advised.

Despite high P/S ratios, Mongolian Mining's robust revenue growth justifies its valuation. Its future growth trajectory, expected to surpass industry progress, is fostering investor confidence. Alterations to its growth pattern may impact share price.

The recent performance of Mongolian Mining may imply some real business momentum, suggesting it may be a good time for investors to delve deeper into the company.