Subsidiaries

Ratings Agency

Long-term

Outlook

Short-term

Last Rating

Taiwan Ratings Corp.

twAAA

Stable

 twA-1+

2011.9

Taiwan Financial Holding Company

S&P Global

S&PA+

Stable

S&PA-1

2011.9

S&P
(Greater China)

cnAAA

Stable

 cnA-1+

2011.9

Taiwan Ratings Corp.

twAAA

Stable

 twA-1+

2011.9

Bank of Taiwan

S&P Global

S&PA+

Stable

S&PA-1

2011.9

S&P
(Greater China)

cnAAA

Stable

 cnA-1+

2011.9

Moody’s

Aa3

Stable

P-1

2010.10

Taiwan Ratings Corp.

twAAA

Stable

-

2011.9

BankTaiwan Life Insurance

S&P Global

S&PA+

Stable

-

2011.9

S&P
(Greater China)

cnAAA

Stable

-

2011.9

BankTaiwan Securities

Fitch Taiwan, Branch 

 AA+(twn)

Stable

F1+(twn)

 2011.6