Singapore shares extended gains from the previous session to end the week in green, as the city-state reported an increase in its manufactured products price index for May.

The Straits Times Index (STI), a key benchmark for the Singapore Exchange, ranged between 3,950.97 and 3,966.20 throughout the day. It ended the session at 3,966.20, up 27.74 points or 0.7% compared to Thursday's close.

In economic news, Singapore's Import Price Index fell 8.1% year on year in May, extending a 7.9% decrease in the preceding month, according to data release by the Department of Statistics.

Meanwhile, Singapore's Manufactured Products Price Index rose 1.1% year over year in May, extending a 3.2% gain in April, according to the Department of Statistics.

In company news, shares of XMH (SGX:BQF) surged nearly 35% at the close after the company's attributable profit jumped to SG$12.9 million in fiscal H2 from SG$6.1 million a year earlier.

Addvalue Technologies (SGX:A31) shares were up nearly 8% with the company securing a $3.7 million order for its software-defined and radiofrequency communication modules from a defense technology customer.

Meanwhile, shares of UMS Integration (SGX:558) were up nearly 8% at the close, as it received approval from the Malaysian Bursa Securities for its proposed listing on the Malaysian Exchange.