Neo was appointed to the newly-created position of group COO in January 2025, after the company's former group CEO Vincent Phang, group CFO Vincent Yik and head of international business Li Yu were fired over mishandling of whistle-blowing complaints.
The company's group CEO role remains vacant for now, as the board, led by chairman Simon Israel assumes a more direct role in managing the company.
Neo will assume additional responsibility as CEO Singapore - in effect, assuming her last role with SingPost before she left to join dnata in May 2024.
The former navy officer first joined the company in April 2019 as vice president, customer experience.
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“We thank Shahrin for his time and contribution to SingPost, and wish him the very best for his future endeavours,” says Israel.
“In his tenure at SingPost, he has lent his expertise in transport and infrastructure to help streamline our network capabilities with a focus on people and operational excellence”.
"I have decided to step away from my role as CEO Singapore to focus on a new chapter in my career," says Shahrin.
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SingPost is due to call for an EGM to get shareholders to approve the sale of a key Australia unit FMH for an enterprise value of more than A$1 billion.
Analysts expect the company to use proceeds from the sale to cut debt and to also dish out part of it as special dividends.
Shares in SingPost closed at 56 cents.