S&P's put China Vanke's BBB+ score on "credit watch negative" from a stable outlook previously.

Moody's on Monday downgraded Vanke to "junk" from an investment-grade rating, by assigning it a 'Ba1' corporate family rating (CFR), and said all of Vanke's ratings would be on review for downgrade.

(Reporting by Marc Jones; Editing by Amanda Cooper)