China’s State Council on Wednesday issued new rules relating to foreign intellectual property disputes that warn against complying with “discriminatory measures” imposed by other countries, while also promising countermeasures against those deemed to be discriminating. The rules appear to target the U.S., which has frequently accused China of aiding the theft of intellectual property through myriad methods, including forced technology transfers. The legal underpinning for the first Trump administration’s tariffs on what was at the time $370 billion worth of...