Arkansas-based Wal-Mart Stores has nearly doubled its interest in Chinese online retailer,

In June, the US retailer agreed to sell its Chinese online marketplace Yihaodian to, in return for a 5% equity in the Chinese company.

This transaction indicated that Wal-Mart is planning to sustain in the Chinese online market as an investor rather than trying to widen its online platform, reported The Wall Street Journal.

"China is a difficult market for overseas firms to sustain."

In a regulatory filing, Wal-Mart stated that it had increased its stake in from 5% to 10.8%. It does not have extra voting power with the acquisition of these shares.

Wal-Mart spokeswoman was quoted by the publication as saying: “The stepped-up investment in JD has been part of our plan, as we continue to be a passive investor. We believe this strategic alliance will help us grow e-commerce even faster in China.”

China is a difficult market for overseas firms to sustain.

This market is dominated by domestic players such as and Alibaba Group Holding Ltd.

JD is supported by Tencent, a social networking company.