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(As of June 30, 2025 )
| Credit Rating Agency | Long-term Bond Raitings | Definition of ratings | 
|---|---|---|
| Rating and Investment Information, Inc. | AA+ | Very high creditworthiness supported by some excellent factors | 
| Moody's Investors Service | A1 | Judged to be top intermediate and are subject to low credit risk | 
| S&P Global Ratings | A+ | Differs from the highest-rated obligations only to a small degree. Capacity to meet its financial commitment on the obligation is very strong. | 
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