Singapore shares extended their losing streak on Thursday, as investors remained focused on the ongoing market pullback, while lingering anxieties regarding U.S. tariff developments also played a part.

The Straits Times Index (STI), a key benchmark for the Singapore Exchange, ranged between 4,958.29 and 5,027.22 throughout the day. It ended the session at 4,964.38, down 43.35 points or 0.9% compared to Wednesday's close.

In economic news, Singapore's manufacturing output increased 16.6% year-on-year in January, backed by increased outputs from several clusters, EDB Singapore reported Thursday.

Furthermore, Foreign Direct Investment, or FDI, in Singapore's corporate sector rose 9.5% to SG$3.130 trillion as at end-2024, from SG$2.859 trillion a year earlier, according to data released by the Department of Statistics Singapore on Thursday.

On the corporate front, shares of AEM (SGX:AWX) soared nearly 22% at the close, as its attributable profit to owners rose 32% in the second half of 2025 to SG$13.9 million from SG$10.5 million a year earlier.

Seatrium's (SGX:5E2) shares closed over 3% higher, as its profit attributable to owners climbed 48% during the second half of 2025 to SG$179.3 million from SG$120.9 million a year earlier.

Meanwhile, shares of China Aviation Oil (Singapore) (SGX:G92) were up nearly 1% at the close as the jet fuel purchaser's profit attributable to owners zoomed 68% in the second half of 2025 to $60.5 million, compared with $36.0 million a year earlier.