Exports of Kessler’s products to the United States, Great Britain and Russia took off. To support this expansion Kessler leveraged the business contacts that he had established during his time at Veuve Clicquot. The commercial agents included the likes of Hills & Whishaw in St Petersburg and Caspar Meier & Cie in New York. However, the company was not allowed to export its ‘mousseux’ to France. In the 1826 separation agreement with Barbe-Nicole Clicquot-Ponsardin, it had been stipulated that, in return for his compensation payment, Kessler would ’...not trade in champagne wines in France, neither directly nor indirectly.