Cheviot Kirribilly Vineyard Property Group (CKP) has altered grape sale contracts for two vineyards within its portfolio.

The Australian group, a trust that owns vineyards and sells grapes to third-party producers, has struck grape contracts with "two major wine companies". The deals are for CKP's Tullymore Vineyard in the Clare Valley and Birchmores Vineyard in Langhorne Creek.

CKP said it had settled its previous contracts for the remaining two-year term of two grape contracts.

The new deals, the company said, would have a "positive impact" on its results during fiscal 2007.