* Long term local-currency deposit down to Baa1 from A3
* Long term national scale deposit cut to Aa3.za from Aa2.za
* Central banks says sector remains health and robust
(Adds SARB comment)
By Helen Nyambura and Xola Potelwa
JOHANNESBURG, Aug 19 Ratings agency Moody's
downgraded South Africa's four biggest banks on Tuesday and put
them on review for further cuts, saying there was a lower
likelihood of support from the central bank to protect creditors
after African Bank's debt crisis.
Moody's cut by a notch the long term local currency deposit
ratings for Standard Bank of South Africa, FirstRand
, Nedbank and Absa Bank, the local operation
for Barclays Group Africa.
The South African Reserve Bank (SARB) said it did not agree
with the reasons given for Moody's downgrade.
The ratings agency said it was adjusting its view following
the $1.6 billion bailout of African Bank by the SARB.
Moody's said while SARB's actions mitigated the risk of
contagion across the banking sector, the regulator had indicated
by its actions it was willing to impose losses on creditors.
"The one notch downgrade ... reflects Moody's view of the
lower likelihood of systemic support from South African
authorities to fully protect creditors in the event of need,"
the ratings agency said in a statement.
The ratings change comes days after a downgrade of smaller
lender Capitec, which had been prompted by the bailout
for unsecured lender African Bank.
"The South African banking sector remains healthy and
robust," the central bank said in a statement.
Impaired advances were only 3.57 percent of total loans in
the industry while banks' capital adequacy was 14.87 percent, it
SARB also disputed the downgrade of Capitec at the time
because the lender had a different model to African Bank.
The news was released after the stock market close.
Some analysts believe the latest wave of downgrades may be
"One bank with a highly flawed business model went into
curatorship, and now we see a possible overreaction, with a
downgrade to every other major bank in South Africa," said Razia
Khan, Head of Africa Research at Standard Chartered.
"The South African banking system remains (on the whole) one
of the best-regulated globally," Khan added.
Moody's also downgraded long-term national scale deposit
ratings for the lenders and placed foreign-currency ratings for
the four and smaller lender Investec on review.
"The review for downgrade reflects the rating agency's
concerns regarding weaker economic growth, particularly in the
context of consumer affordability pressures and still high
consumer indebtedness that are likely to lead to higher credit
costs for the banks," Moody's said.
African Bank has suffered under the failure of many of its
core market of low-income borrowers - hit by unemployment, slow
economic growth and stubbornly high inflation - to repay loans.
Economists said problems with unsecured lending -
high-interest loans not backed by collateral which totalled 12
percent of South African banks' credit exposure at the end of
January - highlight deeper economic issues.
South African household debt averages around 75 percent of
disposable income, meaning servicing debt is a huge burden for
low-income households, where food costs alone account for
one-third of expenditure.
(Editing by David Evans)