The owner of TopShop has joined other retailers including Primark and H&M in signing up to a deal on better safety checks in Bangladesh aimed at preventing any repeats of the building collapse that left more than 1,000 workers dead.
Tesco confirmed it has signed an Accord on Fire and Building Safety in Bangladesh.
In a statement, the supermarket chain noted the "scale and horror of the disaster" that "has drawn the world’s attention" and has "touched customers".
The supermarket chain said that multinational retailers like Tesco, which source from Bangladesh, "must help it to change in a positive way, a way which sustains and improves the livelihoods of all those who work in the industry".
A young woman has been freed from the wreckage of a building in the Bangladeshi capital 17 days after its collapse killed hundreds.
The Bangladesh High Commissioner has told me he believes that Western companies share some of the blame for conditions in Dhaka's factories.
Primark, who bought products from the factories in the destroyed Rana Plaza in Dhaka, will pay compensation to the families of the victims.