CJ Lang has almost sealed its purchase of Spar retailer AM Landsburgh.

The Scottish Spar wholesaler this week confirmed it was in talks with the third-generation family business. CJ Lang will take on 10 Spar stores in Dundee and Fife for an undisclosed sum, ­upping its company-owned estate to 105 stores.

AM Landsburgh is a former Top 50 independent and turned over £9.8m in the year to 31 March 2010, with pre-tax profits of £20,132. In that year's accounts, director Gordon Landsburgh admitted "pressures of increased competition, increased costs and a slightly reduced footfall over the past couple of years".

The company took "the active decision to not just review and accept this added competition, but to meet it head-on with state-of-the art development and heightened importance on pricing and promotions," he added in the accounts.

News of the acquisition comes as CJ Lang extends its incentives package to ­recruit more retailers. It is offering up to £25,000 per store to help with the cost of conversion and free membership for the first year. The benefits package, which is also available to existing Spar members who add a store to their portfolio, was due to expire on 31 March.

Two retailers who currently operate rival fascias had signed up in the last fortnight, a spokesman for CJ Lang said. Conversions should be completed ­within four weeks.

CJ Lang's largest customer Botterills Convenience Stores, which operated 51 Spar stores was bought by Scotmid Co-operative Society last November.