2021
・"Third Party Opinion", CORPORATE REPORT 2021, Taisei Corporation, 2021.9.
(English), (Japanese)
2020
・"Third Party Opinion", CORPORATE REPORT 2020, Taisei Corporation, 2020.10.
(English), (Japanese)
2019
・"Third Party Opinion", CORPORATE REPORT 2019, Taisei Corporation, 2019.9.
(English), (Japanese)
2018
・"Third Party Opinion", CORPORATE REPORT 2018, Taisei Corporation, 2018.9.
(English), (Japanese)
2016
・"Third Party Opinion", CORPORATE REPORT 2016, Taisei Corporation, 2016.7.
(English), (Japanese)
2015
・"Third Party Opinion", CSR Report 2015, Marui Group Co., Ltd., 2015.11.
(Japanese)
・"Third Party Opinion", CORPORATE REPORT 2015, Taisei Corporation, 2015.9. (English), (Japanese)
2014
・"Third Party Opinion", CORPORATE REPORT 2014 DATA BOOK, Taisei Corporation, 2014.7. (English), (Japanese)
2013
・"Third Party Opinion", CORPORATE REPORT 2013 DATA BOOK, Taisei Corporation, 2013.7. (English), (Japanese)
・Stakeholder Dialogue：Supply Chain," Nikon CSR Report", 2013.6. (English), (Japanese)
2012
・"Third Party Opinion", CSR Report 2012,Yamaha Motor Co., Ltd., 2012.7. (English）, (Japanese)
・"Third Party Opinion", CORPORATE REPORT 2012 DATA BOOK, Taisei Corporation, 2012.7. (English）, (Japanese)
2011
・"Third Party Opinion", CSR Report 2011, MITSUI & CO., LTD., 2011.8. (English) , (Japanese)
・"Third Party Opinion", CSR Report 2011, Taisei Corporation, 2011.6. (English) , (Japanese)
2010
・"Third Party Opinion", Corporate Report 2010, Cosmo Oil Co., Ltd. 2010.9. (Japanese)
・"Third Party Opinion", CSR Report 2010, NTT East Corporation, 2010.9. （Japanese)
・"Third Party Opinion", CSR Report 2010, MITSUI & CO., LTD., 2010.8. (English) , (Japanese)
・"Third Party Opinion", CSR Report 2010, Taisei Corporation, 2010.6. (English) , (Japanese),
・Stakeholder Dialogue of Tokyo Gas Co.,Ltd, "Tokyo Gas CSR Report 2010", 2010.8. (English) ,(Japanese)
・Board Dialogue of Sumitomo Rubber Industries, Ltd., "CSR Report 2010", 2010.6. (English) (Japanese)
2009
・"Third Party Opinion", CSR Report 2009, NTT East Corporation. 2009.9. (Japanese)
・"Third Party Opinion", CSR Report 2009 , MITSUI & CO., LTD. ,2009.9,(English),(Japanese)
・"Opinions from Third Parties" , 2009 CSR Report, Sumitomo Mitsui Financial Group. 2009.8. (Japanese)
・"Third Party Opinion", CSR Report 2009, The Nisshin OilliO Group, Ltd., 2009.7. (Japanese)
・"Third Party Opinion", CSR Report 2009, Yamaha Motor Co., Ltd., 2009.6. (English) ,(Japanese)
・"Third Party Opinion", CSR Report 2009, Taisei Corporation., 2009.6.(English) , (Japanese)
・Stakeholder Dialogue of Tokyo Gas Co.,Ltd, "Tokyo Gas CSR Report 2009", 2009.8. (Japanese)
・Board Dialogue of Cosmo Oil Co., Ltd, "Sustainability Report 2009", 2009.9.(Japanses)
2008

・"Third Party Opinion", CSR Report 2008 , MITSUI & CO., LTD. 2008,12. (English), (Japanese)
・"Third Party Opinion", CSR Report 2008, NTT East Corporation. 2008.9 (Japanese)
・"Opinions from Third Parties" , 2008 CSR Report, Sumitomo Mitsui Financial Group. 2008.9.(English) ,(Japanese).
・"Third Party Opinion", CSR Report 2008, Taisei Corporation, 2008.8. (English), (Japanese)
・"Third Party Opinion", CSR Report 2008, Yamaha Motor Co., Ltd, 2008.6. (English), (Japanese)
・"Third Party Opinion", CSR Report 2008, The Nisshin OilliO Group, Ltd, 2008.6.(Japanese)
・"Comment", Matsushita Electric Works, CSR Report 2008, 2008.6. (English), (Japanese)
・ Dialogue with Takashi Ishida, President and Chief Executive Officer, West Nippon Expressway Company Limited, "CSR Report 2008" .
(Japanese)
・Stakeholder Dialogue of Tokyo Gas Co., .Ltd, "Tokyo Gas CSR Report 2008", 2008.7.
2007

・"Third Party Opinion", CSR Report 2007 , MITSUI & CO., LTD. 2007,11. (English), (Japanese)
・"Opinions from Third Parties" , CSR Report 2007, Sumitomo Mitsui Financial Group. 2007.11. (English), (Japanese)
・"Third-Party Opinion", Environmental and Social Report 2007, Mitsui O.S.K.lines, Ltd. ,2007.9. (English),(Japnese)
・"Third-Party Opinion", CSR Report 2007, NTT DoCoMo, Inc., 2007.8.
(English), (Japanese)
・"Third Party Comments", CSR Report 2007, Taisei Corporation, 2007.7.(Japanese)
・"Independent Review / Public Evaluation" Nomura Holdings Inc., CSR report 2007, 2007.7. (English), (Japanese)
・"Third Party Comments", CSR Report 2007, Citizen Group, 2007.6.
(English), (Japanese)
・"Third Party Opinions", CSR Report 2007, Asahi Breweres Group, 2007.6.
(English), (Japanese)
・"Comment", Matsushita Electric Works, CSR Report 2007, 2007.6.
(English), (Japanese)
・ Dialogue with Masatoshi Sato, President and Chief Executive Officer, Sompo Japan Insurance Inc. "CSR Communication Report" 2007. (Japanese)
(html), (pdf) in Japanese.
・Stakeholder Dialogue of Tokyo Gas Co.,.Ltd., "Tokyo Gas CSR Report 2007", 2007.8.
2006
・"Third Party Opinion", CSR Report 2006, MITSUI & CO., LTD., 2006.12. (English), (Japanese)
・"Third Party Opinion", CSR Report 2006, The Dai-ichi Life Insurance Company, 2006.12.
・ "Opinions from Third Parties" , CSR Report 2006 , Sumitomo Mitsui Financial Group. 2006.12.
（English), (Japanese)
・Dialogue with Masatoshi Sato, President and Chief Executive Officer, Sompo Japan, "CSR Communication Report 2006", 2006.11.
・"Third Party Opinion", CSR Report 2006, Nipponkoa Insurance Col., Ltd., 2006.9.
・"Third Party Opinion", CSR Report 2006, Kansai Electric Power Co., Inc., 2006.9. (Japanese)
・"Third Party Comments", CSR Report 2006, Taisei Corporation, 2006.9. (English), (Japanese)
・"Third Party Opinion", Sustainability Report 2006, Fuji Xerox Co., Ltd., 2006.9.
・"Third Party Opinion", CSR Report 2006, Nomura Holdings Inc., 2006.7. (Japanese)
・"Third Party Comments", CSR Communication Report 2006, Japan Energy Corporation, 2006.7. (Japanese)
2005
・"Third Party Opinion", CSR Report 2005, MITSUI & CO., LTD., 2005. 12. (English), (Japanese)
・　Dialogue with Tetsuro Toyoda, President, Toyota Industries Corporation, "Social and Environmental Report 2005", 2005. 12.(English), (Japanese)
・"Third Party Opinion", CSR Report 2005, The Dai-ichi Life Insurance Company, 2005.11.
・"Third Party Opinion", CSR Report 2005, Kansai Electric Power Co., Inc., 2005. 9.(Japanese)
・"Third Party Opinion", CSR Report 2005, Mitsubishi Heavy Industries, Ltd., 2005.6. (English), (Japanese)
2004
・"Third Party Opinion", Environmental and Social Report 2004, Mitsui O.S.K. Lines, 2004.8. (Japanese)
2003
・"Third Party Message", Sustainability Report 2003, MITSUI & CO., LTD., (English), (Japanese)