A Chinese production line for semiconductors, an industry where the trend to find suppliers outside the country is particularly pronounced. For a growing number of Western tech companies, “Anything But China" is the order of the day. In recent years, many multinationals decided they had become overreliant on suppliers in China, prompting them to pursue a so-called “China Plus 1" strategy of augmenting China-based suppliers with those in other countries. Now, with U.S.-China tensions soaring again, many tech businesses are accelerating moves to shift production out of China and look for suppliers elsewhere, signifying a global tech world that is...