Year
Corporate
 Bond
                                    AA-
NICE Credit
 Information
AA-
Korea Investors Service
AA-
Korea Ratings
* Credit Rating Agency (Grade) : AAA~D
Commercial
 Paper
                                    A1
NICE Credit
 Information
A1
Korea Investors Service
A1
Korea Ratings
*Credit Rating Agency (Grade) : A1~D
Corporate
 Bond
                                    AA-
NICE Credit
 Information
AA-
Korea Investors Service
AA-
Korea Ratings
* Credit Rating Agency (Grade) : AAA~D
Commercial
 Paper
                                    A1
NICE Credit
 Information
A1
Korea Investors Service
A1
Korea Ratings
*Credit Rating Agency (Grade) : A1~D
Corporate
 Bond
                                    AA-
NICE Credit
 Information
AA-
Korea Investors Service
AA-
Korea Ratings
* Credit Rating Agency (Grade) : AAA~D
Commercial
 Paper
                                    A1
NICE Credit
 Information
A1
Korea Investors Service
A1
Korea Ratings
*Credit Rating Agency (Grade) : A1~D
Corporate
 Bond
                                    AA-
NICE Credit
 Information
AA-
Korea Investors Service
AA-
Korea Ratings
* Credit Rating Agency (Grade) : AAA~D
Commercial
 Paper
                                    A1
NICE Credit
 Information
A1
Korea Investors Service
A1
Korea Ratings
*Credit Rating Agency (Grade) : A1~D
Corporate
 Bond
                                    AA-
NICE Credit
 Information
AA-
Korea Investors Service
AA-
Korea Ratings
* Credit Rating Agency (Grade) : AAA~D
Commercial
 Paper
                                    A1
NICE Credit
 Information
A1
Korea Investors Service
A1
Korea Ratings
*Credit Rating Agency (Grade) : A1~D
Corporate
 Bond
                                    AA-
NICE Credit
 Information
AA-
Korea Investors Service
AA-
Korea Ratings
* Credit Rating Agency (Grade) : AAA~D
Commercial
 Paper
                                    A1
NICE Credit
 Information
A1
Korea Investors Service
A1
Korea Ratings
*Credit Rating Agency (Grade) : A1~D