The market anticipates dwindling future revenue, keeping the P/S suppressed. The company's shrinking medium-term revenue is a key factor in its low P/S ratio. Investors feel the potential for revenue improvement doesn't justify a higher P/S ratio.

China Western Power Industrial's low P/S ratio indicates skepticism over sustained revenue growth. This, along with shrinking long-term revenues and predicted industry growth, could stagnate its share price.