Singapore shares stayed in the green on Wednesday, tracking broader regional gains, as US President Donald Trump painted a gloomy scenario if the US Supreme Court ruled against upholding his sweeping tariffs.

The Straits Times Index (STI), a key benchmark for the Singapore Exchange, ranged between 4,786.42 and 4,812.51 throughout the day. It ended the session at 4,812.51, up 5.38 points or 0.11% compared to Tuesday's close.

The tariffs, which include sweeping levies Trump revealed in April 2025, have been challenged by a number of small US businesses, citing the president exceeding his authority in imposing additional taxes.

Trump has currently imposed a 10% baseline tax on Singapore.

In corporate news, shares of Cordlife (SGX:P8A) surged over 25% at the close as it secured a one-year renewal of its cord blood banking service license.

Low Keng Huat (Singapore) (SGX:F1E) was up over 5% as Consistent Record increased the offer price for its proposed acquisition of all its shares to SG$0.78 per share in cash from SG$0.72 initially.

Meanwhile, shares of Centurion (SGX:OU8) were up over 5% at the close as it completed the acquisition of a purpose-built student accommodation in Sydney, Australia, EPIISOD Macquarie Park.

STI up 0.1%; Hongkong Land up 3%; ST Engineering up 2%; SingPost, SATS, UOL, UOB up 1%; Nio, YZJ Shipbldg fell 2%.