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 stake in April 2015. In August 2016, Tesco sold Euphorium's high street shops and factory in Islington to Soho Coffee, and its factory in Weybridge to Samworth Brothers. Tesco has expanded its operations outside the UK to 11 other countries in the world. The company pulled out of the USA in 2013, but continues to see growth elsewhere. Tesco's international expansion strategy has responded to the need to be sensitive to local expectations in other countries by entering into joint ventures with local partners, such Charoen Pokphand in Thailand to form Tesco Lotus, and by appointing a very high proportion