Release
Date

Agency

Global

National

Outlook

Long-term

Short-term

Long-term

Short-term

2011/11

  Moody's

A3

P-1

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Stable

2011/11

  Fitch Ratings

BBB+

F2

AA-(twn)

F1+(twn)

Stable

2011/12

  Taiwan Ratings

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twAA

twA-1+

Stable

2011/12

  S&P

BBB+

A-2

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Stable