Why does the news suggest Koppers Holdings Inc. stock is a 'bargain' despite trading near its 52-week high?

The news states that Koppers Holdings Inc. stock 'appears to be a bargain according to a price multiple model, with a lower price-to-earnings ratio compared to the industry average' — this is the core reason cited for the 'bargain' label, even though the stock is trading near its 52-week high.

What is the projected earnings growth for Koppers Holdings Inc., and how does the article link it to the stock's current valuation?

The article states that 'future earnings are expected to grow by 68%', and links this directly to valuation by noting that such strong growth 'may not yet be fully reflected in the share price', thereby suggesting upside potential for both current shareholders and new investors.