Tesco Ireland was formed from Power Supermarkets Ltd in 1999, more commonly known as the Quinnsworth and Crazy Prices chain of supermarkets in Ireland; the chain is a subsiduary of Tesco PLC. Quinnsworth is remembered for their choice of store sites, their most memorable act was the addition of the phrase Yellow Pack to the English language. At the time, products were being sold in Superquinn supermarkets as White Pack and in Quinnsworth as Yellow Pack.
Tesco Ireland is the largest food retailer in Ireland, and has over 10,000 employees. As of 2004 Tesco Ireland has come in for increased critism for apparently high prices in its Irish stores, although in its favour this seams to be because comparisions are with the British Tesco stores rather than other Irish retailers - and thus like is not been compaired with like.