Singapore shares extended gains on Wednesday despite mixed signals in the regional markets, after US President Donald Trump indicated that the tariffs deadline will not be pushed back.

The Straits Times Index (STI), a key benchmark for the Singapore Exchange, ranged between 3,991.74 and 4,011.78, maintaining the 4,000 threshold throughout the day. It ended the session at 4,010.77, up 21.01 points or 0.53% compared to Tuesday's close.

In company news, shares of mm2 Asia (SGX:1B0) were down nearly 13% at the close, as Lendlease Global Commercial REIT (SGX:JYEU) issued a statutory demand to the company's subsidiary, Cathay Cineplexes, for SG$3.4 million in outstanding rental payments.

Yangzijiang Financial (SGX:YF8) shares were up over 5% with the company incorporating its proposed spin-off company, YZJ Maritime Development, as a wholly owned subsidiary in Singapore.

Meanwhile, shares of Singapore Land (SGX:U06) were up nearly 4% at the close, as the company was granted an order of sale by the general division of the High Court of Singapore to acquire Thomson View Condominium.