生态与环境
EEI

股本结构

单位：万股
公告日期 2019-12-17 2019-10-30 2019-10-30 2019-06-17 2019-06-17 2019-05-31
证券总股本 433.00 433.00 432.89 431.51 431.51 431.51
普通股本 433.00 433.00 432.89 431.51 431.51 431.51
优先股 未披露 未披露 未披露 未披露 未披露 未披露
其他 未披露 未披露 未披露 未披露 未披露 未披露
变动日期 2019-11-02 2019-10-04 2019-07-31 2019-05-31 2019-04-27 2018-10-27
注释：中概股证券总股本=普通股股本/ 存托凭证比例

历史变动

公告日期 变动后普通股本（万股） 变动后优先股（万股） 变动原因 变动日期
2019-12-17 433.00 未披露 定期报告 2019-11-02
2019-10-30 433.00 未披露 定期报告 2019-10-04
2019-10-30 432.89 未披露
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from July 31, 2018 to July 31, 2019 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
2019-07-31
2019-06-17 431.51 未披露 定期报告 2019-05-31
2019-06-17 431.51 未披露
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from January 26, 2019 to April 27, 2019 Conversion of Class B common stock to Class A common stock
2019-04-27
2019-05-31 431.51 未披露
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From July 31, 2018 To October 27, 2018 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
2018-10-27
2019-05-31 431.31 未披露
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From July 31, 2017 To July 31, 2018 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
2018-07-31
2018-06-12 431.31 未披露 定期报告 2018-05-31
2018-06-12 430.16 未披露
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From July 31, 2017 To April 28, 2018 Conversion of Class B common stock to Class A common stock
2018-04-28
2017-12-12 430.16 未披露
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From July 31, 2017 To October 28, 2017 Conversion of Class B common stock to Class A common stock
2017-10-28
2017-11-14 430.16 未披露
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From July 31, 2016 to July 31, 2017 Issuance of stock under stock award plan
2017-07-31
2016-12-13 429.41 未披露
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From July 31, 2016 to October 29, 2016 Issuance of stock under stock award plan
2016-10-29
2016-11-15 429.41 未披露 定期报告 2016-09-30
2016-11-15 428.97 未披露
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From July 31, 2015 to July 31, 2016 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan Stock award plan forfeitures
2016-07-31
2016-06-14 428.97 未披露 定期报告 2016-05-31
2016-06-14 428.99 未披露
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from July 31, 2015 to April 30, 2016 Conversion of Class B common stock to Class A common stock Stock award plan forfeitures Issuance of stock under stock award plan
2016-04-30
2015-12-15 429.12 未披露
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from July 31, 2015 to October 31, 2015 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
2015-10-31
2015-10-29 428.67 未披露 定期报告 2015-09-30
2015-10-29 428.67 未披露
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from July 31, 2014 to July 31, 2015 Conversion of Class B to Class A common stock Stock award plan forfeitures
2015-07-31
2015-06-16 428.71 未披露
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from July 31, 2014 to May 2, 2015 Conversion of Class B to Class A common stock Stock award plan forfeitures
2015-05-02
2015-03-17 430.29 未披露 定期报告 2015-02-28
2014-12-16 428.84 未披露
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from July 31, 2014 to November 1, 2014 Conversion of Class B to Class A common stock
2014-11-01
2014-10-29 430.29 未披露 定期报告 2014-09-30
2014-10-29 428.84 未披露
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from July 31, 2013 to July 31, 2014 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
2014-07-31
2014-06-23 428.93 未披露
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from July 31, 2013 to April 30, 2014 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
2014-04-30
2014-03-17 428.97 未披露
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from July 31, 2013 to January 31, 2014 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
2014-01-31
2013-12-16 429.02 未披露 定期报告 2013-11-30
2013-12-16 430.63 未披露
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From July 31, 2013 to October 31, 2013 Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
2013-10-31
2013-11-14 424.98 未披露
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from July 31, 2012 to June 1,2013 Purchase of additional noncontrolling interests Stock award plan forfeitures
2013-06-01
2013-03-18 425.12 未披露
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from July 31, 2012 to January 31, 2013 Purchase of additional noncontrolling interests Stock award plan forfeitures
2013-01-31
2012-12-06 424.39 未披露 定期报告 2012-12-05
2012-12-19 424.39 未披露
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from July 31, 2012 to September 30, 2012 Stock award plan forfeitures
2012-09-30
2012-11-14 424.42 未披露
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from July 31, 2011 to July 31, 2012 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
2012-07-31
2012-06-14 424.49 未披露
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From July 31, 2011 to April 30, 2012 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
2012-04-30
2012-03-21 424.53 未披露
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from July 31, 2011 to January 31, 2012 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
2012-01-31
2011-12-13 424.07 未披露
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Repurchase of Class A common stock Issuance of stock under stock award plan Stock award plan forfeitures
2011-10-29
2011-10-31 417.93 未披露 定期报告 2011-09-30
2011-10-31 420.30 未披露
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from July 31,2010 to July 31,2011 Conversion of common stock - B to A
2011-07-31
2011-06-14 424.03 未披露 定期报告 2011-06-01
2011-06-14 439.37 未披露
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From July 31, 2010 to April 30, 2011 Conversion of common stock - B to A
2011-04-30
2011-03-15 423.28 未披露
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from July 31, 2010 to January 29, 2011 Conversion of common stock - B to A Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests
2011-01-29
2010-12-14 422.70 未披露 定期报告 2010-12-01
2010-12-14 422.85 未披露
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Conversion of common stock - B to A
2010-10-30
2010-10-29 418.31 未披露 定期报告 2010-09-30
2010-10-29 423.28 未披露
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Conversion of common stock - B to A
2010-07-31
2010-06-15 419.30 未披露
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from July 31, 2009 to May 1, 2010 Issuance of stock under stock award plan Purchase of additional noncontrolling interests
2010-05-01
2010-03-16 419.44 未披露
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from July 31, 2009 to January 30, 2010 Issuance of stock under stock award plan Purchase of additional noncontrolling interests
2010-01-30
2009-10-28 408.66 未披露
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from July 31, 2008 to July 31, 2009 Conversion of common stock - B to A Repurchase of Class A common stock Issuance of stock under stock award plan
2009-07-31
2008-10-29 425.43 未披露 定期报告 2008-09-30
2008-10-29 426.36 未披露
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from July 31, 2007 to July 31, 2008 Repurchase of Class A common stock Issuance of stock under stock award plan
2008-07-31
2007-10-29 422.49 未披露
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from July 31, 2006 to July 31, 2007 5% Stock Dividend Conversion of common stock - B to A Repurchase of Class A common stock Issuance of stock under stock award plan
2007-07-31
2006-10-30 405.14 未披露 定期报告 2006-09-30
2006-10-30 405.63 未披露
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from July 31, 2005 to July 31, 2006 Conversion of common stock - B to A Stock options exercised Repurchase of Class A common stock
2006-07-31
2005-10-28 406.30 未披露
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from July 31, 2004 to July 31, 2005 Conversion of common stock - B to A Stock options exercised Repurchase of Class A common stock Issuance of stock under stock award plan, net Forfeitures
2005-07-31
2004-10-29 408.75 未披露 定期报告 2004-09-30
2004-10-29 409.55 未披露
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from July 31, 2003 to July 31, 2004 Conversion of common stock - B to A Stock options exercised Repurchase of Class A common stock Issuance of stock under stock award plan, net Forfeitures
2004-07-31
2003-11-12 406.72 未披露 定期报告 2003-09-30
2003-11-12 407.14 未披露
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from July 31, 2002 to July 31, 2003 Stock options Repurchase of Class A common stock Issuance of stock under stock award plan, net
2003-07-31
2002-10-29 407.02 未披露 定期报告 2002-09-30
2002-10-29 407.17 未披露
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from July 31, 2001 to July 31, 2002 Conversion of common stock - B to A Stock options Repurchase of Class A common stock Issuance of stock under stock award plan, net
2002-07-31
2001-10-29 408.68 未披露 定期报告 2001-09-28
2001-10-29 406.86 未披露
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from July 31, 2000 to July 31, 2001 Conversion of Class B common stock to Class A common stock Repurchase of Class A common stock Issuance of stock under stock award plan
2001-07-31
2000-10-30 401.46 未披露
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from July 31, 1999 to July 31, 2000 Conversion of Class B common stock to Class A common stock Repurchase of Class A common stock Purchase of Walsh Environmental
2000-07-31
1999-10-29 396.59 未披露 定期报告 1999-09-30
1999-10-29 396.70 未披露
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from July 31, 1998 to July 31, 1999 Conversion of Class B common stock to Class A common stock Repurchase of Class A common stock Issuance of stock under stock award plan
1999-07-31
1998-10-29 396.07 未披露 定期报告 1998-09-30
1998-10-29 396.07 未披露
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from July 31, 1997 to July 31, 1998 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
1998-07-31
1997-10-29 394.93 未披露
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from July 31, 1996 to July 31, 1997 Conversion of Class B common stock to Class A common stock Repurchase of Class A common stock
1997-07-31
1996-10-28 396.84 未披露 定期报告 1996-09-30
1996-10-28 397.47 未披露
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from July 31, 1995 to July 31, 1996 Conversion of Class B common stock to Class A common stock Issuance of stock under incentive stock option plan Repurchase of Class A common stock
1996-07-31
1995-10-27 411.67 未披露 定期报告 1995-09-29
1995-10-27 412.22 未披露
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from July 31, 1994 to July 31, 1995 Conversion of Class B common stock to Class A common stock Repurchase of stock
1995-07-31
from July 31, 2018 to July 31, 2019 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
from January 26, 2019 to April 27, 2019 Conversion of Class B common stock to Class A common stock
From July 31, 2018 To October 27, 2018 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
From July 31, 2017 To July 31, 2018 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
From July 31, 2017 To April 28, 2018 Conversion of Class B common stock to Class A common stock
From July 31, 2017 To October 28, 2017 Conversion of Class B common stock to Class A common stock
From July 31, 2016 to July 31, 2017 Issuance of stock under stock award plan
From July 31, 2016 to October 29, 2016 Issuance of stock under stock award plan
From July 31, 2015 to July 31, 2016 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan Stock award plan forfeitures
from July 31, 2015 to April 30, 2016 Conversion of Class B common stock to Class A common stock Stock award plan forfeitures Issuance of stock under stock award plan
from July 31, 2015 to October 31, 2015 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
from July 31, 2014 to July 31, 2015 Conversion of Class B to Class A common stock Stock award plan forfeitures
from July 31, 2014 to May 2, 2015 Conversion of Class B to Class A common stock Stock award plan forfeitures
from July 31, 2014 to November 1, 2014 Conversion of Class B to Class A common stock
from July 31, 2013 to July 31, 2014 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
from July 31, 2013 to April 30, 2014 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
from July 31, 2013 to January 31, 2014 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
From July 31, 2013 to October 31, 2013 Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
from July 31, 2012 to June 1,2013 Purchase of additional noncontrolling interests Stock award plan forfeitures
from July 31, 2012 to January 31, 2013 Purchase of additional noncontrolling interests Stock award plan forfeitures
from July 31, 2012 to September 30, 2012 Stock award plan forfeitures
from July 31, 2011 to July 31, 2012 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
From July 31, 2011 to April 30, 2012 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
from July 31, 2011 to January 31, 2012 Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests Stock award plan forfeitures
Repurchase of Class A common stock Issuance of stock under stock award plan Stock award plan forfeitures
from July 31,2010 to July 31,2011 Conversion of common stock - B to A
From July 31, 2010 to April 30, 2011 Conversion of common stock - B to A
from July 31, 2010 to January 29, 2011 Conversion of common stock - B to A Repurchase of Class A common stock Issuance of stock under stock award plan Purchase of additional noncontrolling interests
Conversion of common stock - B to A
Conversion of common stock - B to A
from July 31, 2009 to May 1, 2010 Issuance of stock under stock award plan Purchase of additional noncontrolling interests
from July 31, 2009 to January 30, 2010 Issuance of stock under stock award plan Purchase of additional noncontrolling interests
from July 31, 2008 to July 31, 2009 Conversion of common stock - B to A Repurchase of Class A common stock Issuance of stock under stock award plan
from July 31, 2007 to July 31, 2008 Repurchase of Class A common stock Issuance of stock under stock award plan
from July 31, 2006 to July 31, 2007 5% Stock Dividend Conversion of common stock - B to A Repurchase of Class A common stock Issuance of stock under stock award plan
from July 31, 2005 to July 31, 2006 Conversion of common stock - B to A Stock options exercised Repurchase of Class A common stock
from July 31, 2004 to July 31, 2005 Conversion of common stock - B to A Stock options exercised Repurchase of Class A common stock Issuance of stock under stock award plan, net Forfeitures
from July 31, 2003 to July 31, 2004 Conversion of common stock - B to A Stock options exercised Repurchase of Class A common stock Issuance of stock under stock award plan, net Forfeitures
from July 31, 2002 to July 31, 2003 Stock options Repurchase of Class A common stock Issuance of stock under stock award plan, net
from July 31, 2001 to July 31, 2002 Conversion of common stock - B to A Stock options Repurchase of Class A common stock Issuance of stock under stock award plan, net
from July 31, 2000 to July 31, 2001 Conversion of Class B common stock to Class A common stock Repurchase of Class A common stock Issuance of stock under stock award plan
from July 31, 1999 to July 31, 2000 Conversion of Class B common stock to Class A common stock Repurchase of Class A common stock Purchase of Walsh Environmental
from July 31, 1998 to July 31, 1999 Conversion of Class B common stock to Class A common stock Repurchase of Class A common stock Issuance of stock under stock award plan
from July 31, 1997 to July 31, 1998 Conversion of Class B common stock to Class A common stock Issuance of stock under stock award plan
from July 31, 1996 to July 31, 1997 Conversion of Class B common stock to Class A common stock Repurchase of Class A common stock
from July 31, 1995 to July 31, 1996 Conversion of Class B common stock to Class A common stock Issuance of stock under incentive stock option plan Repurchase of Class A common stock
from July 31, 1994 to July 31, 1995 Conversion of Class B common stock to Class A common stock Repurchase of stock
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