The e-commerce firm will help luxury fashion marketplace Farfetch expand in China as part of a strategic partnership deal that took Farfetch's total funding to about $700m.

E-commerce firm JD.com is investing $397m in UK-based luxury online fashion seller Farfetch as part of a strategic partnership announced today.

Farfetch operates an e-commerce platform that sells goods supplied by more than 700 luxury brands, and it has also developed an e-commerce technology product as well as in-store retail technology for brick-and-mortar fashion sellers.

JD.com will supply Farfetch with marketing, logistics and technology assistance to help it carve out a stable position in China, where it already partners about…