Tencent currently holds 9.2% of Ubisofts voting rights while Guillemot has 20.5%.
The STJV reported on Thursday that Ubisoft staff in Milan had joined theindustrial actionout of solidarity.
One union leader even suggested Ubisoft had launched the RTO order as a way to shed staff.
French Ubisoft workers picket HQ in ParisGetty Images
The union noted that the RTO order had been issued shortly after talks over profit-sharing had broken down.