HONG KONG (Reuters) - A consortium comprising China's CITIC Capital and Singapore state investor Temasek Holdings is set to buy U.S.-listed Asiainfo-Linkage Inc (>> AsiaInfo-Linkage, Inc.) for about $900 million (585.5 million pounds), people familiar with matter told Reuters on Monday.

An announcement is expected in the next few hours, the people said, putting an end to a 16-month process that started with CITIC Capital making its first offer to buy the China-based software and IT company.

The final offer is expected to be $12 per share, 2.8 percent above Asiainfo's last traded price of $11.68 on Friday.

The price would be the same as CITIC Capital's initial bid in January 2012.

Citic Capital and Asiainfo-Linkage did not respond to phone calls after business hours requesting comment on the takeover bid.

(Reporting by Prakash Chakravarti of IFR/LPC, Jacqueline Poh of Basis Point and Denny Thomas; Additional reporting by Elzio Barreto; Editing by Greg Mahlich)