Headquartered in Singapore, Lazada is a leading online retailer in Southeast Asia. [Photo: iwshang.com]

Alibaba has made yet another international purchase.

This time, the Chinese e-commerce giant has purchased a controlling stake in fellow e-commerce firm Lazada for an estimated 1 billion US dollars.

Lazada is based out of Singapore.

It's one of the largest e-commerce sites in Southeast Asia.

Alibaba's purchase of the firm is part of the company's broader goals to expand its international foot-print.

As of the end of last year, only around 6-percent of Alibaba's total revenues came from the international market.