A Melbourne painting and decorating company, and its director, have been fined $20,000 after telling a worker he could not work at particular construction sites unless he joined the CFMEU.

Arteam director Michael Hanna admitted to sending a text message to workers in March 2014 stating that they must have valid union memberships before starting work at two Melbourne projects. When questioned whether union membership was compulsory, Mr Hanna told the worker he would not be allowed to work on…