Top 10 Most Profitable Environmental Stocks: DGW, CREG, TRIT, SRCL, ECOL, WCN, DCI, WM, CLH, MPR (Apr 13, 2011)

Below are the top 10 most profitable Environmental stocks for the last 12
months, UPDATED TODAY before 4:30 AM ET. Three Chinese companies (DGW, CREG,
TRIT) are on the list. Duoyuan Global Water Inc (ADR) (NYSE:DGW) is the 1st most
profitable stock in this segment of the market. Its net profit margin was 23.68%
for the last 12 months. Its operating profit margin was 32.21% for the same
period. China Recycling Energy Corp. (NASDAQ:CREG) is the 2nd most profitable
stock in this segment of the market. Its net profit margin was 23.61% for the
last 12 months. Its operating profit margin was 38.26% for the same period.
Tri-Tech Holding, Inc. (NASDAQ:TRIT) is the 3rd most profitable stock in this
segment of the market. Its net profit margin was 17.11% for the last 12 months.
Its operating profit margin was 19.88% for the same period. Stericycle, Inc.
(NASDAQ:SRCL) is the 4th most profitable stock in this segment of the market.
Its net profit margin was 14.62% for the last 12 months. Its operating profit
margin was 25.75% for the same period. US Ecology Inc. (NASDAQ:ECOL) is the 5th
most profitable stock in this segment of the market. Its net profit margin was
12.00% for the last 12 months. Its operating profit margin was 19.44% for the
same period. Waste Connections, Inc. (NYSE:WCN) is the 6th most profitable stock
in this segment of the market. Its net profit margin was 10.32% for the last 12
months. Its operating profit margin was 19.87% for the same period. Donaldson
Company, Inc. (NYSE:DCI) is the 7th most profitable stock in this segment of the
market. Its net profit margin was 9.50% for the last 12 months. Its operating
profit margin was 13.83% for the same period. Waste Management, Inc. (NYSE:WM)
is the 8th most profitable stock in this segment of the market. Its net profit
margin was 8.01% for the last 12 months. Its operating profit margin was 16.91%
for the same period. Clean Harbors, Inc. (NYSE:CLH) is the 9th most profitable
stock in this segment of the market. Its net profit margin was 7.38% for the
last 12 months. Its operating profit margin was 12.11% for the same period.
Met-Pro Corporation (NYSE:MPR) is the 10th most profitable stock in this segment
of the market. Its net profit margin was 6.91% for the last 12 months. Its
operating profit margin was 10.09% for the same period.