This report discusses the principles of marketing and brand extension strategy for Cadbury, a famous brand offering a range of products in its portfolio such as chocolate drinks, chocolates, and biscuits. The report highlights the company's plan to launch a range of chips products in the market and compete with its biggest competitor, Walker Chips. The report also covers the company's existing brand and brand values, Kraft identity prism model, target market, and analysis of the new market, including trends.