Tokyo Metro expands REFMa system to other railway operators, Japan April 28, 2026 | Asia Pacific Company News, Asia Pacific News, Company News, News Tokyo Metro Co., Ltd. has begun deploying its Railway Electrical Facilities Maintenance Management System (REFMa) on networks run by external operators for the first time, marking a step forward in ra... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password