<p><em>History of Kombu and Kombu Road</em> <br />Kombu <a href="https://www.nishikidori.com/en/15-seaweeds">seaweed</a> from Hokkaido has been distributed throughout Japan for centuries and is an important commercial issue. Kombu seaweed harvested in Hokkaido were previously transported by boat, moving westward along the coast of Sea of Japan to Osaka, a commercial center since that time. For this reason, wholesalers and processors of kombu seaweed are found mainly in or around Osaka. The route the kombu took from Hokkaido to its destination is called the Kombu road. It extends to China via Okinawa. <br /><br /><em>The different kombu seaweed in Japan</em> <br />Kombu algae are found in many countries around the world, including Japan, Russia, China, the Tasmanian Islands, Australia, South Africa, the Scandinavian Peninsula and Canada. In Japan, most of the kombu is harvested in Hokkaido, accounting for about 90% of total production. The waters of the Arctic Ocean that derive from Siberia to Hokkaido are rich in minerals and provide an environment that produces delicious kombu. The equipment used in Japan to dry kombu seaweed in the sun meets the most demanding sanitary standards, making Japanese kombu particularly popular worldwide.</p>