www.hatstone.com/panama-to-introduce-a-beneficial-owner-register/
Update:
www.ey.com/en_gl/tax-alerts/panama-publishes-law-on-beneficial-owner-register-for-legal-enti
www.orbitax.com/news/archive.php/Panama-Publishes-Law-for-Benef-41556
ariaslaw.com/en/news-in/panama–regulation-to-the-law-that-creates-the-private-and-unique-system-of-registration-of-beneficial-owners-of-legal-entities