Sainsbury's in 'advanced' discussions over £10bn-plus merger with Asda to create supermarket giant
Sainsbury's supermarket
Sainsbury's supermarket

Sainsbury's is in talks about a £10bn-plus merger with Asda that could force the sale or closure of hundreds of stores across the UK to win the approval of competition regulators.

Sainsbury's confirmed it was in “advanced” discussions with US retail giant Wal-Mart, which owns Asda, about a tie-up, a move which see the combined business overtake Tesco as the market leader in Britain.

Such a combination would cause upheaval on the UK high street, creating what was described as a “game-changer of epic proportions” by one supermarket analyst.

However, with more than 2,000 stores between Sainsbury's and Asda, watchdogs are likely to demand widespread disposals of outlets to stop dominating swathes of the UK retail market.

Such an outcome raises questions about the future of thousands of staff, though it is understood the two companies are mulling the tie-up to be able to source stock more competitively, rather than to cut costs.

The move is understood to be in response to the radically changing retail landscape, with traditional giants facing pressure from online retailers such as Amazon, and recent entrants such as the Aldi and Lidl discount chains.

It is thought an agreement - which is expected to see both brand names retained - could be announced within weeks, though news leaking of a possible deal could hasten this.

Asda sign
Asda is owned by US retail giant Wal-Mart

A combined Sainsbury's-Asda would have almost a third of the UK retail market, putting it ahead of current number one Tesco, which has a 28pc market share. According to data from retail analyst Kantar, Sainsbury's and Asda each have about 16pc of the market - and a combined business would have an annual turnover of £50bn.

Led by Mike Coupe since 2015, Sainsbury’s has about 150,000 staff and 1,400 stores - though more than half of them are smaller “convenience” outlets - with a bias towards locations in the south.

The chief executive - who had a stint at Asda in the early stages of his career - has previously made bold moves before which have shaken up the UK retail sector. One of the most notable was the £1.4bn acquisition of Argos and Homebase-owner Home Retail Group two years ago, which has seen Argos outlets put into Sainsbury’s supermarkets.

Asda has 165,000 staff and about 650 stores, almost all of them supermarkets or superstores, with a focus on the north of England. The business is headed by Roger Burnley, who took the helm in January, and was previously retail and operations director at Sainsbury’s before being lured to Asda in 2016 as deputy chief executive.

Any tie-up would almost certainly attract scrutiny from the Competition and Markets Authority (CMA) watchdog, with it likely to demand concessions such as the sale of hundreds of stores to approve a deal.