Walmart had been in talks with possible buyers of a majority stake of Asda since February, but those talks were put on hold in April once the coronavirus pandemic hit.
"Walmart and Asda have restarted conversations with a small number of third-party investors who are interested in acquiring a stake in Asda and partnering with Walmart, following renewed inbound interest," the spokesman told Reuters.
Asda's future has been uncertain since U.K. regulators blocked a merger between Asda and peer British supermarket chain Sainsbury's in April 2019.
Since then, Walmart has considered a stock market listing for the company before the Bentonville, Ark., retail giant decided to sell a stake in February.
Private equity firms Apollo Global Management, Lone Star Funds and TDR Capital all submitted first-round offers for Asda earlier this year, Bloomberg reported.
The news service also reported that the deal was expected to value the business at more than 7 billion pounds ($8.6 billion).
In separate news, Walmart Canada said Monday that it would spend C$3.5 billion (US$2.58 billion) over the next five years to improve its e-commerce business amid a shift toward online shopping due to the coronavirus pandemic.
The Canadian division of the world's largest retailer also said that would be renovating 150 stores, more than a third of its locations in the country.
Shares of Walmart at last check were up 0.2% to $131.94. The stock is up 12% over the past four weeks.