Seabrook Potato Crisps sold through mail order. The company has a number of firsts to its name - in 1979, they were the first company to launch crinkle cut crisps, and these now make up the majority of their business. In the 1980s the company was the first to start using sunflower oil in its cooking process and in 2007 Seabrook were the first crisp brand to remove MSG from all its crisps. In 2014 Seabrook went one step further, and were the first, and remain the only major crisp brand to be Coeliac UK (gluten free) accredited. In 2014 they also launched
First South Yorkshire yellow livery with silver and blue bands was introduced. In November 1993 South Yorkshire Transport sold "Mainline" in a management buyout. Shortly after Stagecoach purchased a 20% stake in the company, however this was sold in 1995 to FirstBus. In 1998 FirstGroup purchased the remaining 80% shareholding and renamed the business "First Mainline". Buses were repainted in a simplified red and yellow livery, reminiscent of the original 1989 "Sheffield Mainline" livery. In 2000 "First Mainline" was rebranded as "First South Yorkshire" and the corporate light grey, blue and pink livery introduced. In 2013, First South Yorkshire began to paint buses