"Booths' termination of membership will have no material effect on the group's operations as Booths stopped buying from us a long time ago," said Neil Turton, chief executive officer of Nisa-Today's.
"It is a great shame but the decision is as amicable as can be. Our companies have been going in opposite directions for some time - we are focusing on effective central distribution across the country and running a symbol group, whereas Booths is now a regional multiple with its own distribution centre."
Its departure had been mitigated by the fact that in the financial year to date, Nisa-Today's had recruited members with a combined turnover of more than £61.5m, said Turton. It was also undergoing the most extensive recruitment campaign in its history.
Sales grew by 6% in the year to April 2008 and Turton predicted that by next April another £75m would have been added to the current £1.2bn turnover.
Booths is expected to report a 4% increase in sales to £243m for the year to April and a pre-tax profit of close to £9m, up 30% on last year. "Nisa's continued development of central distribution has differentiated it from Booths' plans to develop its unique grocery offering," said Booths chairman Edwin Booth.