Beijing Winter Olympics organizers will increase the product offerings for the mascot Bing Dwen Dwen, a spokesman said on Sunday in response to the rising popularity of the mascot and a recent shortage of stock.

The chubby panda wearing an ice crystal shell suit has won hearts of millions after the Winter Olympics opened on Friday, becoming a favorite of international athletes, media and members of the public.

The mascot-themed merchandise such as keychains and dolls is already out of stock at officially licensed online retailers and many physical shops and "Bing Dwen Dwen being sold out" has become a trending topic on Sina Weibo, with many netizens expressed the wish to own at least one Bing Dwen Dwen.

Zhao Weidong, spokesman for the Beijing Winter Olympic Organizing Committee, said at a news conference on Sunday that the shortage of supply was partly because many workers and factories were on the Chinese New Year holiday and could not cope with the sudden burst of demand in time.

"We're coordinating with relevant departments to increase the supply of Bing Dwen Dwen," he said, adding that it also reflected the great attention the ongoing Beijing Winter Olympics are attracting.

Christophe Dubi, Olympic Games executive director of the International Olympic Committee, said Bing Dwen Dwen is a lively, fun and witty mascot "full of positive energy". "She has to be part of my collection and for kids all over the globe," he added.