STANDARD Chartered Singapore announced more senior management changes on Friday as the banking group pushes on with streamlining its organisation.

Andrew Chia has been appointed head of retail banking, Singapore. He will replace Rajan Raju, who is leaving for health reasons.

Vanessa Leung will become head of commercial banking, Singapore; and Goh Beng Kim will be the new head of transaction banking, Singapore.

The current heads of commercial banking and transaction banking - Kenneth Tham and Motasim Iqbal, respectively - will take on other roles. Updates will be released in due course, a bank spokeswoman said.

"The bank is taking actions to reposition itself for growth, with a view to improving the way we serve our clients," she said on the latest appointments.

"We have previously guided that there will be further personnel changes to come, both globally and locally," she added.

Last week, StanChart group chief executive Bill Winters said the bank will cut up to 25 per cent of its senior staff as it sets about simplifying its organisational structure in a bid to cut costs.

Both Mr Chia and Ms Leung will report to Judy Hsu, StanChart Singapore's newly installed chief executive. Ms Hsu, who was appointed last month, took up the reins on Oct 1.

As of 1H2015, Singapore is the group's second largest contributor both in income and operating profit.

Mr Chia is currently global head of managed investments, group wealth management. Before that, he was head of retail clients at Standard Chartered Bank (Taiwan) Ltd until June. He joined StanChart in October 2010 as regional head of wealth management for Singapore and South-east Asia.

Ms Leung currently heads the portfolio management regional coverage team in lending and portfolio management, a global function based in Singapore. Before 2007, she spent eight years with the Singapore business in senior roles managing credit and as head of local corporates from 2004 to 2005. She joined StanChart in 1995.

Mr Goh moves from his position as head, product management, transaction banking, Asean. He joined the bank in 2009, where he initially performed the same role for Singapore before taking on the regional position in 2012.

He will report to Patrick Lee, head, corporate and institutional banking, Singapore.

All three appointments will take effect no later than Nov 1.