Japan's parliament enacted a law Wednesday requiring major technology companies to be more transparent, falling in line with other countries in toughening regulations on industry giants such as Google LLC and Amazon.com Inc.

Companies that operate e-commerce websites and apps will be required to submit reports on their business practices every year to the Ministry of Economy, Trade and Industry after the law takes effect, likely by next spring.

After receiving the reports, the ministry will solicit comments from merchants, conduct reviews and publish the results.