The move to mexico was the plan all along. Go back a year ago Stack-On Products was sold to Cannon Safe, Inc. and MidOcean Partners. Tarrifs are the excuse for closing but the real reason is the high tax rate an union wages they had to in Illinois.. Canon Safe office and plants are in Las Vegas and will stay in Vegas because of the low wages they pay their employees. MidOcean Partners made the call to move as they are a blood sucking private equity firm specializing in leveraged buyouts.