French wine group Tresch has bought Burgundy négociant François Martenot from Schenk Group, the biggest owner of vineyards in Switzerland.

Tresch, one of the top 10 négociants in France, secured a deal with Schenk that will also see the Swiss-based group take a 20% stake in the company. No financial details were disclosed.

Daniel Tresch, the company's chief executive, told just-drinks today (17 October) that the acquisition gave it a range of wines from across France.

"With Martenot, we will develop wines from Burgundy, Beaujolais, the Rhone valley and Languedoc-Roussillon," he said.

Tresch said that the company would look to grow the sales of wines from Martenot in Schenk's key markets, which include Spain, Germany, the Benelux and Italy.

He added that Tresch wanted to boost its exports, which accounted for 50% of sales last year.

Schenk will remain a "sleeping partner" in Tresch, he said, as the company wanted to rely on the "specialist knowhow" of Tresch as a négociant in France.

Schenk officials could not be reached for comment as just-drinks went to press.