The Tokyo Stock Exchange (TSE) plans to introduce new disclosure rules for midsize companies that have not published specific measures to improve capital efficiency, its president, Ryusuke Yokoyama, said in a recent interview.

Although three years have passed since the exchange called on listed firms to focus on boosting capital efficiency and stock prices, midsize companies have been slow to announce related targets and measures to achieve the goals.

"It's important for companies finding it difficult to meet our past request to get to the starting line," Yokoyama said, explaining the reason for the planned introduction of new disclosure standards.