(MENAFN - AFP) Cathay Pacific said on Wednesday that 2012 net profit plunged 83.3 percent, as the Hong Kong flag carrier was hit by persistently high fuel prices and the eurozone financial crisis.The airline said profit stood at HK916 million (118 million), down from the HK5.5 billion it recorded in 2011. Revenue rose 1.0 percent to HK99.4 billion from HK98.4 billion in 2011.Cathay said it carried a total of 29.0 million passengers in 2012, a 5.0-percent rise year on-year, but its premium class sales were hit as companies cut back on travel for executives."It was a challenging year for the aviation industry generally," chairman Christopher Pratt said in a statement to the Hong Kong stock exchange.The airline said that "sustained high levels" of jet fuel prices, which accounts for more than 40 percent of total operation costs, dragged down its performance."The high cost of fuel made it more difficult to operate profitably, particularly on long-haul routes operated by older, less fuel-efficient, Boeing 747-400 and Airbus A340-300 aircraft," said Pratt.Even though Cathay has accelerated its plans to retire fuel-guzzling aircraft, the chairman said fuel costs will remain its "biggest challenge" this year, as the long-haul routes account for a huge chunk of its business."Economic uncertainty, particularly in the eurozone countries, and an increasingly competitive environment added to the difficulties," Pratt said."We believe we have taken the right measures to deal with current challenges and will take whatever further measures are necessary should the business environment not improve," he added.The weak global economy continued to take a toll on Cathay's air cargo business, with revenue falling 5.5 percent to HK24.6 billion in 2012, while demand for shipments in key markets Hong Kong and mainland China "was well below expectations".The blue-chip Asian airline in August posted a first-half year net loss of HK935 million.Airlines around the world have been struggling with fuel costs and softening demand owing to the global economic weakness.But the International Air Transport Association said in December that profits for global airlines are expected to pick up, with the industry group forecasting total profits of 6.7 billion for 2012, up from its previous estimate of 4.1 billion.