By Vladimir Guevarra

LONDON--U.K. insurer Standard Life PLC (SL.LN) said Tuesday it will open an office this month in the Southeast Asian country of Singapore, highlighting the Edinburgh-based company's aggressive push into Asia.

The company also plans to quadruple its sales agents in China over the next few years, the insurer's head in Asia told Dow Jones Newswires.

Standard Life's expansion in the region comes two weeks after rival Aviva PLC (AV.LN) said it would exit the Sri Lankan market as part of an effort to narrow its focus.

Recent media reports have said that Aviva is also trying to sell its Malaysian joint venture with Malaysian bank CIMB Group Holdings Bhd (1023.KU), and that Prudential PLC (PRU.LN), which has the strongest presence in Asia among U.K. insurers, is among a few insurers looking at the asset for sale.

"Singapore is a very competitive and developed market, and we like the regulations there. It's a fantastic base to tackle Southeast Asia. We've got a base in Hong Kong, which tackles North Asia," said Nathan Parnaby, chief executive of Standard Life's Asia and emerging markets division.

"The move is part of the group's strategy to accelerate its access to the high-growth, high-value markets within Asia and emerging markets," he said.

Mr. Parnaby's newly created division consists mainly of the Chinese and Indian operations, which contributed 8 million pounds ($12.9 million) to the group's first-half pretax profit of GBP302 million.

Mr. Parnaby said it is possible for the company to open an office in another market in Asia before the end of the year.

Standard Life's Singapore office will have nine people initially, and will offer insurance and investment products for its target wealthy customers.

In China, Mr. Parnaby said the company's joint venture with TEDA International Holding Group, called Heng An Standard Life, is growing fast. "Our hope is that we can increase the sales force in China from the current 3,500 to about 14,000 over four and a half years," he said.

Mr. Parnaby said Asia is fast becoming a more sophisticated market, and the increasing popularity of sales of insurance products through the Internet and mobile devices means it is becoming easier to reach out to Asian customers.

In India, Standard Life is also looking at possibly raising its 26% stake in its Indian joint venture, should India's parliament approve the government's plan to raise the foreign-ownership limit to 49%.

Mr. Parnaby added that Standard Life is focused mainly on organic growth, but is open to small acquisitions should they become available.

Write to Vladimir Guevarra at vladimir.guevarra@dowjones.com; Twitter: @Vlad_DowJones

Subscribe to WSJ: http://online.wsj.com?mod=djnwires