A British Michelin-starred chef says he is opening restaurants abroad to subsidise his UK venues against a backdrop of high taxes and a struggling hospitality sector. Jason Atherton is now in Forte dei Marmi, on the Tuscan coast in Italy , where he is preparing his newest opening, Maria’s, which will be in the Principessa hotel. The Sheffield-born chef now has restaurants all over the world, including in Dubai and St Moritz. He said he was finding it easier to make a profit in countries with more forgiving policies towards restaurants, pubs and bars. “I am trying to sustain our business by opening abroad. We are opening one new restaurant in the UK but we are very cautious – we are certainly not gung ho like we were five or six years ago,” Atherton said from the kitchen at Maria’s. The chef, 54, believes “restaurants will not survive” if high taxes continue. “If we didn’t have a global brand we would find it tough because the UK is tough,” he said. “I have restaurants that are losing money.…