Shopify announced on Tuesday that it has collaborated with China's JD.com to allow American merchants to sell to JD's Chinese clients.

The strategic agreement comes amid fierce rivalry in China's e-commerce market, which includes Pinduoduo , Alibaba Group Holding, and Douyin. The agreement's financial specifics were not disclosed.

According to the firms, the agreement will allow Shopify merchants to sell on JD's cross-border platform JD Worldwide, giving them access to JD's 550 million active customers in China.

Shopify logo and symbol, meaning, history, PNG

Shopify merchants in the United States can begin selling their products in China in three to four weeks, less than the 12 months that global businesses generally require to sell in the country, according to Shopify. According to the firms, this is part of bigger strategic cooperation between Shopify and JD.com aimed at tackling cross-border commerce difficulties for merchants in the United States and China.

China has been cracking down on its internet sector, particularly e-commerce companies, for over a year, targeting their global growth goals and domestic market power consolidation, with JD.com feeling the heat.

According to state-owned media, JD.com and four other e-commerce companies were called by a Chinese province last month over live streaming violations during the Singles' Day shopping extravaganza on Nov. 11.