Top 4 Small-Cap Stocks In The Nonmetallic Mineral Mining Industry With The Highest Operating Margin (LLEN, RNO, HWD, CHGS)

Below are the top small-cap nonmetallic mineral mining stocks on the NYSE, the NASDAQ and the AMEX in terms of operating margin. The trailing-twelve-month operating margin at L&L Energy Inc

is 28.56%. LLEN's ROE for the same period is 48.81%. The trailing-twelve-month operating margin at Rhino Resource Partners LP

is 10.66%. RNO's ROE for the same period is 21.32%. The trailing-twelve-month operating margin at Harry Winston Diamond Corporation

is 10.33%. HWD's revenue for the same period is $623.96 million. The trailing-twelve-month operating margin at China GengSheng Minerals Inc

is 3.75%. CHGS' PEG ratio is 0.68.