Tracking down Kobayashi Pharmaceutical's tainted products in the supply chain is proving to be extremely difficult. So far, the beni kōji supplements had been linked to at least five deaths, 188 hospitalizations and 1,058 doctor visits.

The report by Kobayashi Pharmaceutical disclosed the names of 52 companies that had been directly supplied with its beni kōji, and 173 companies that receive the substance from the 52 companies. However, research found that the drugmaker's reach is much wider when considering companies that purchase the red yeast rice further down the supply chain.

In the press conference, the company's president, Kobayashi Akihiro, said that the top priority is to ensure that those who are complaining of health damage are examined and treated, and that it is important to provide compensation if necessary.