There are fresh fears that Irish whiskey could be hit by new US tariffs.
In October, it was announced that a range of goods from the EU were to be subjected to US duties including Irish butter, cheese, liqueurs and pork products.
Irish whiskey made in Northern Ireland was on the list of goods but whiskey made in the Republic of Ireland was spared.
Now however, there are growing concerns that Irish whiskey could be affected.
The tariffs were announced in retaliation for EU aircraft subsidies but last night the World Trade Organization said Europe had not complied with obligations to remove subsidies to Airbus.
In response, the office of the US Trade Representative said it is considering increasing the tariff rates and subjecting additional EU products to the tariffs.
In a letter to members, the Irish Whiskey Association said it was a worrying development and that the threat of tariffs has now escalated.
The head of the Irish Whiskey Association, William Lavelle, wrote: "We will continue to monitor the situation and to lobby accordingly."
The EU is pushing for tariffs of around $10 billion on US goods in a parallel process to be decided by the WTO early next year.