"Some Chinese state-owned entities…have adopted a controversial defense when they face U.S. lawsuits: You can't touch us because we enjoy sovereign immunity. Aviation Industry Corporation of China (AVIC)...has used the strategy twice, while state-owned China National Building Materials Group Co (CNBM), a state-owned building products company, successfully used it in a case involving allegations that Chinese-made drywall led to health problems for U.S. homeowners..."