The main business of chemical companies often spans multiple sectors. For example, many focus on polyurethane production, which is widely used in refrigerators, freezers, and automotive seating. Others specialize in petrochemicals like propylene, ethylene, and intermediates such as styrene, essential for construction, packaging, and electronics. Additionally, fine chemicals and new materials are a growing area, covering pharmaceuticals, coatings, adhesives, and specialty polymers. Companies may also engage in trading raw materials, plastics, rubber products, and international import-export. Meanwhile, for those in Australia interested in property development or upgrades, expert home extension cooks hill services provide reliable construction solutions tailored to modern needs.