 Today, the Taiwanese units are used exclusively, in some cases alongside official metric (SI) units, and in other cases they have been supplanted by metric units.Note that although the Taiwanese units have similar names to those in Chinese units of measurement and Hong Kong units of measurement, the standards are different from those used in China or Hong Kong because they're of Japanese origin and not Chinese.Linear measure in Taiwan is largely metric but some units derived from traditional Japanese units of measurement remain in use as a legacy of Japanese rule.