China Business & EconomyInvestors Sink Bonds of China’s State-Backed Chipmaker Tsinghua UnigroupSaveMark Us Preferred on GooglePrintWorkers check laptop parts inside a factory in Lu'an City, Anhui Province, China, on November 19, 2018. STR/AFP via Getty ImagesFan Yu11/10/2019|Updated: 11/12/2019Investors are casting doubt about the financial health of one of China’s most strategically important technology companies.Tsinghua Unigroup Co., the company spearheading China’s developing microchip business, has seen the price of its dollar-denominated debt crater.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.