A sign of Credit Suisse bank is seen on a branch in Geneva, on March 15, 2023. Asian policymakers and regulators sought to reassure investors on March 16, 2023 about the resilience of their banking systems and played down contagion risks after a crisis of confidence in the global banking sector triggered a market sell-off. (PHOTO / AFP)

SYDNEY/HONG KONG – Asian policymakers and regulators sought to reassure investors on Thursday about the resilience of their banking systems and played down contagion risks after a crisis of confidence in the global banking sector triggered a market sell-off.

A plunge in shares of Credit Suisse on Wednesday triggered worries of a full-blown banking crisis. The bank on Thursday announced it would borrow up to 50 billion Swiss francs ($54 billion) from the Swiss central bank.

Australian Treasurer Jim Chalmers said on Thursday local banks were well capitalized, after he convened a meeting earlier this week of major regulators and the central bank following the collapse of Silicon Valley Bank

The Credit Suisse development came a week after a start-up lender in California failed.

Australian Treasurer Jim Chalmers said on Thursday local banks were well capitalized, after he convened a meeting earlier this week of major regulators and the central bank following the collapse of Silicon Valley Bank.

"Our regulators are on top of things, our banks well-capitalized with strong liquidity positions, but it's still a reminder of the risks, uncertainties and vulnerabilities in the global economy as interest rates rise," said Chalmers.

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He made no mention of Credit Suisse, which saw its shares tank by up 30 percent on Wednesday ahead of it being given access to a liquidity lifeline from the Swiss National Bank (SNB).

Responding to Reuters query on Credit Suisse stock collapse and the wider market vulnerabilities, Hong Kong's securities watchdog said it was currently "closely monitoring the situation to assess the impact" on the city's market.

The head of Japan's banking lobby said that there were no signs at the moment of the Japanese financial system being affected by a crisis of confidence in Credit Suisse, as the country's banks are well-capitalized

The SFC has "maintained close dialogue with other financial regulators" and the Hong Kong stock exchange on this matter, the Securities and Futures Commission of Hong Kong said in a statement.

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The head of Japan's banking lobby said that there were no signs at the moment of the Japanese financial system being affected by a crisis of confidence in Credit Suisse, as the country's banks are well-capitalized.

In South Korea, the Financial Services Commission (FSC) said it was considering having its banks hold more capital to prepare for instability. 

It said in a statement it was considering raising the countercyclical capital buffer (CCyB) ratio from the current zero percent as early as in the second half of this year.

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The CCyB is designed to be adjusted so that lenders should accumulate capital to create buffers that strengthen the resilience of the banking sector during periods of stress when losses materialize.