April 1, 2008 - New GW silicones unit Injection molder GW Plastics (Bethel, VT) will form a new business unit, GW Silicones, at its Royalton, VT facility. Sabic already is the world’s fourth-largest polyolefins supplier, and leapt into the engineering plastics world by acquiring GE Plastics (now named Sabic Innovative Plastics) for $11.6 billion. Brown Machinery is the largest North American manufacturer of thermoforming machines.