Exhibit 8.1

SUBSIDIARY DIRECTORY OF SUMITOMO MITSUI TRUST HOLDINGS, INC.

The following table sets forth certain basic information for each of our principal consolidated subsidiaries and equity method affiliates as of June 30, 2011.

Name	Jurisdiction of Incorporation	Equity Ownership (%)
The Sumitomo Trust and Banking Company, Limited	Japan		100.00	%
The Chuo Mitsui Trust and Banking Company, Limited	Japan		100.00	%
Chuo Mitsui Asset Trust and Banking Company, Limited	Japan		100.00	%
Chuo Mitsui Asset Management Company, Limited	Japan		100.00	%
STB Asset Management Co., Ltd.	Japan		100.00	%
Nikko Asset Management Co., Ltd.	Japan		98.60	%
Chuo Mitsui Capital Company Limited	Japan		100.00	%
STB Investment Corporation	Japan		100.00	%
STB Real Estate Investment Management Co., Ltd.	Japan		100.00	%
Chuo Mitsui Trust Realty Company, Limited	Japan		100.00	%
Top REIT Asset Management Co., Ltd.	Japan		38.00	%
Mitsui & Co., Logistics Partners Ltd.	Japan		29.00	%
Japan Trustee Services Bank, Ltd.	Japan		66.67	%
STB Research Institute Co., Ltd.	Japan		100.00	%
Sumishin Realty Company Limited	Japan		100.00	%
Chuo Mitsui Realty Company Limited	Japan		55.00	%
Tokyo Securities Transfer Agent Co., Ltd.	Japan		100.00	%
Japan TA Solution, Ltd.	Japan		80.00	%
Japan Stockholders Data Service Company, Limited	Japan		50.00	%
Japan Pension Operation Service, Ltd.	Japan		50.00	%
Sumishin Real Estate Loan & Finance, Ltd.	Japan		100.00	%
Chuo Mitsui Finance Service Co., Ltd.	Japan		100.00	%
BUSINEXT CORPORATION	Japan		40.00	%
Sumishin Card Company, Limited	Japan		95.00	%
Chuo Mitsui Card Co., Ltd.	Japan		93.99	%
Sumishin Life Card Company, Limited	Japan		40.00	%
Sumishin Panasonic Financial Services Co., Ltd.	Japan		84.89	%
STB Wealth Partners Co., Limited	Japan		100.00	%
SBI Sumishin Net Bank, Ltd.	Japan		50.00	%
Chuo Mitsui Information Technology Co., Ltd.	Japan		100.00	%
Suimishin Information Service Company Limited	Japan		100.00	%
Chuo Mitsui Guarantee Co., Ltd.	Japan		100.00	%
Sumishin Guarantee Company, Limited	Japan		100.00	%
Chuo Mitsui Business Co., Ltd.	Japan		100.00	%
Chuo Mitsui Loan Business Company, Limited	Japan		100.00	%
STB Business Service Company, Limited	Japan		100.00	%
Chuo Mitsui Create Company, Limited	Japan		100.00	%
HR One Corporation	Japan		35.89	%
STB Business Partners Co., Ltd.	Japan		100.00	%
CMTB Facilities Company, Limited	Japan		100.00	%
The Sumishin Shinko Company Limited	Japan		100.00	%
CMTB Equity Investments Co., Ltd.	Japan		100.00	%
Sumitomo Trust and Banking Co. (U.S.A.)	United States		100.00	%
Sumitomo Trust and Banking (Luxembourg) S.A.	Luxembourg		100.00	%
Chuo Mitsui Trust International Limited	United Kingdom		100.00	%
The Sumitomo Trust Finance (H.K.) Ltd.	China		100.00	%
Chuo Mitsui Investments Hong Kong Ltd.	China		100.00	%
STB Consulting (China) Co., Ltd.	China		100.00	%
Zijin Trust Co., Ltd.	China		19.99	%
Rongtong Fund Management Co., Ltd.	China		40.00	%

8.1-1