2013 horse meat scandal only found more than 1% horse DNA in Asda's tins of but it also contained four ppb of phenylbutazone, marking the first time since the start of the scandal that bute had been detected in a meat product in the UK food chain. However, one problem raised was over documentation; all of the UK animals with phenylbutazone contamination tested in early 2013 possessed a "horse passport" that allowed the carcasses to be sold for human consumption. The veterinary residues committee (VRC) reminded the public in July 2012 that it had been "repeatedly expressing concern" about phenylbutazone contamination. and recent discoveries
Tesco Lotus runs programs for undergraduates which include in-store training. The company is also part of a major reforestation program, "Plant 9 Million Trees", which completed its 9 million trees target in 2013. In line with the rest of Tesco group, Tesco Lotus is pledged to reduce carbon emissions from its business operations and opened the first "Zero Carbon Store" in Asia at Bangpra, Chonburi in November 2011. In late 2007 and early 2008, Tesco Lotus sued three of its critics for libel. It lost the case against Jit Siratranont, former MP and now vice-general secretary of the Thai Chamber of Commerce,