The measures mark the first time Tokyo has attacked China-based companies for their alleged support of Russia's war.
Japan has unveiled trade restrictions against companies from China, India, Kazakhstan and Uzbekistan for their alleged support of Russia's war against Ukraine.
The sanctions announced by Japan's Foreign Ministry on Friday mark the first time Tokyo has targeted companies based in China over their alleged links to the war.
Under the measures, Japanese companies are prohibited from exporting goods to the sanctioned companies, which include Hong Kong-based Asia Pacific Links Ltd and Shenzhen-based Yilufa Electronics Limited.
The latest sanctions come after Japan and South Korea last month announced sanctions against companies and individuals accused of supplying North Korean weapons to Russia for use in Ukraine.
Under Japanese Prime Minister Fumio Kishida, Tokyo has taken a tougher stance against Moscow than any other government in Asia, most of which have refused to take sides in the war.
During last year's G7 summit in Hiroshima, Kishida pledged “unwavering solidarity” with Ukraine while condemning governments that used force to change the status quo.
Last week, the United States implemented sanctions targeting more than 300 people and companies accused of aiding Russia's war effort, including entities in China, South Africa, the United Arab Emirates and Turkey.
US Treasury Secretary Janet Yellen said the measures would diminish “Russia's ability to benefit from access to foreign technology, equipment, software and IT services.”
