The Tokyo Stock Exchange has decided to require companies listed on its top-tier Prime section to disclose key information in English to attract more foreign investors.

The TSE says foreign market players often complain that the lack of information in English and delayed disclosures are cramping their investment activities.

As of October last year, 91 percent of Prime-listed firms were releasing their earnings reports in English.

And 50 percent provided English translations of key timely facts, such as revised earnings forecasts and executive lineup reshuffles.

The exchange plans to require both types of information to be fully disclosed in English from March 2025.

The rule change will cover the Prime section's roughly 1,600 firms.

The TSE says it will consider expanding the requirement to securities reports and other documents.