The whistleblowers at the center of the so-called Luxleaks scandal have had their sentences reduced by a court in Luxembourg.
Earlier this year, Antoine Deltour and Raphael Halet were given suspended jail sentences by the court for their role in passing to the media thousands of documents detailing private tax rulings between multinational companies and the Luxembourg tax authority.
Both men were also ordered to pay fines of EUR1,500 (USD1,600) and EUR1,000, respectively, but a third defendant, French Journalist Edouard Perrin, who made the initial LuxLeak revelations on French television, was acquitted of all charges.
On March 15, a Luxembourg appeal court halved Deltour's suspended sentence to six months, while Halet's suspended sentence lifted.
However, the appeal court ruled that the criminal convictions against the two men should stand, and ordered them to pay the fines meted out by the lower court.
The ruling has disappointed transparency campaigners, who were hoping that the appeal court would quash the convictions.
ActionAid UK Head of Advocacy Charlie Matthews said: "The EU and UK should act to boost tax transparency by compelling companies to reveal how much tax they pay in every country where they do business."