US pork exports to China have surged beyond pre-trade war levels, led by higher shipments from Brazil’s JBS SA and China’s WH Group, owner of Smithfield Foods, according to Panjiva, the research unit of S&P Global Market Intelligence.JBS may have shipped 370 per cent more US pork to China this year through until the end of August than at the same period in 2017, while exports linked to WH Group rose 90.1 per cent, Panjiva said on Tuesday. Meanwhile, Arkansas-based Tyson Foods shipped 7.3 per…