| Rating | Japan | U.S.A | R.O.K | |||
| Number of Enterprises | Ratio | Number of Enterprises | Ratio | Number of Enterprises | Ratio | |
| AAA | 6 | 6.9% | 2 | 2.7% | 0 | 0% |
| AA | 17 | 19.5% | 13 | 17.8% | 3 | 6% |
| A | 29 | 33.3% | 16 | 21.9% | 8 | 16% |
| BBB | 20 | 23% | 30 | 41.1% | 15 | 30% |
| BB | 8 | 9.2% | 8 | 11% | 15 | 30% |
| B | 4 | 4.6% | 4 | 5.5% | 6 | 12% |
| CCC | 3 | 3.5% | 0 | 0% | 3 | 6% |
| Total | 87 | 100% | 73 | 100% | 50 | 100% |