some of you might now know, China has moved more than 700billion usd out from US. They reinvested in many other areas. By end of this year, they will be looking at 1.2 trillion to 1.4 trillion profit. By next year can just go over 2 to 3 trillion in profit. Countries may take loan from them in usd but payback in rmb.

Actually the interest rate is determined by the lowest bidder, not by issuer. Bonds issuance normally involve an investment bank gathering all the rate bids from investors.