Suntory -196 abv % seems wrong, something I’m missing?

Just bought some EU/UK Suntory -196 Grapefruit and had a look at the ingredients as I noticed that the percentage was different to the one I buy at my asian supermarket (which is the strong zero version so different anyway) but it seems like the ingredients and abv % dont add up. Ingredients list 4% vodka (avg. 40% abv) and 1% shochu (between 25-45% but assuming the strongest for this). This to me means that the percentage of alcohol in the can is 1.6% from the vodka and a max of 0.45% from the shochu. This means total can abv of 2.05% at the most but it is advertised as 6%. I feel like I must have missed something obvious here but let me know