SINGAPORE investment firm Temasek Holdings on Tuesday said it plans to raise $600 million from new bond offerings.

The latest news follows an announcement in October that the firm would raise US$1.5 billion ($2.08 billion) through a 10-year bond offer under a capital raising programme worth US$5 billion.

Temasek said in a statement the bond offerings, to be made in two tranches of $300 million, would be issued by its wholly owned subsidiary Temasek Financial.

"The issuer intends to provide the net proceeds from the offering to Temasek and its investment holding companies to fund their ordinary course of business," the investment vehicle said in a statement.

"The notes will be fully and unconditionally guaranteed by Temasek," it said.

Temasek said one tranche of the offering would mature in 2029 while the other was due in 2039.

The firm is one of the world's largest sovereign wealth funds and had a global portfolio worth $130 billion as of March, including stakes in companies such as Singapore Airlines and Standard Chartered bank.