Singapore shares fell marginally on Friday, despite increased optimism over US-China trade wars, with the city-state reporting improve manufacturing output in March.

The Straits Times Index (STI), a key benchmark for the Singapore Exchange, ranged between 3,806.86 and 3,846.85 throughout the day. It ended the session at 3,823.78, down 8.14 points or 0.21% compared to Thursday's close.

In economic news, Singapore's manufacturing output increased 5.8% year-on-year in March, the sharpest pace of growth in four months, backed by increased output from the transport engineering and electronics clusters, according to data from EDB Singapore.

In company news, shares of Hongkong Land (SGX:H78) surged nearly 10% after the company agreed to sell the top nine floors of One Exchange Square to the Hong Kong Exchanges and Clearing for HK$6.3 billion.

CSE Global's (SGX:544) shares were down over 1% even after its subsidiary, CSE Crosscom USA, secured orders worth $15 million.

Meanwhile, shares of Keppel DC REIT (SGX:AJBU) were up under 1% at the close after its wholly owned subsidiary, Keppel DC REIT Fin. Company, obtained a green loan facility of SG$100 million.