S&P Global Ratings has lowered its sovereign credit rating on China from A+/A- to AA-/A-1+, reflecting concerns about increasing economic and financial risks.
The main worry for S&P is the "prolonged period of strong credit growth" that is rising faster than income growth.
"Although this credit growth had contributed to strong real GDP growth and higher asset prices, we believe it has also diminished financial stability to some extent," said S&P.
While the ratings agency noted efforts by the Chinese authorities to rein in corporate leverage, it was concern that credit growth will remain at current levels for the next two to three years.
"The ratings on China reflect our view of the government's reform agenda, growth prospects and strong external metrics. On the other hand, we weigh these strengths against certain credit factors that are weaker than what is typical for similarly rated peers," said S&P.
The ratings agency added that China has lower average income, less transparency and a more restricted flow of information than its global peers.
