The Chinese government is pressing the U.S. Commerce Department to close an investigation into cross-border subsidies allegedly provided by China to paper file folder producers in Cambodia, arguing such probes run afoul of World Trade Organization rules and are not authorized under U.S. law. Commerce last year axed a 1988 regulation that had prevented it from investigating subsidies provided by a government beyond its borders, a phenomenon that a Commerce official at the time said had become increasingly prevalent in...