Introduction: Kester Company was founded in 1899 as the Chicago Solder Company, producing flux core solder. This patented Kester manufacturing process has had a significant impact on the electronics industry to this day. ITW acquired Kester in 2006 and is now part of ITW's Testing and Measurement and Electronics business unit. Currently, as a tool manufacturing company based in Illinois, Kester is a leading global supplier of assembly materials for the electronic assembly, component, and microelectronics markets. Kester's products include a range of basic and high-tech accessory materials, including traditional welding chemicals, pastes, wires, and rods. The company has factories in North America, Europe, and Asia, providing services to customers worldwide. Kester provides the following solutions: solder wire, liquid solder flux Kester flux, viscous flux (TSF), pre formed, soldering iron, SE-CURE ™ Advanced semiconductor packaging materials and comprehensive global customer technical support services. Kester's products are renowned worldwide for their high quality and advanced technology. Koster's ISO-14001 and ISO-9001 certifications ensure that Koster's partners are committed to quality and environmental responsibility. Kester's goal is to provide product solutions for the global electronics assembly, semiconductor, and automotive industries. Kester official website: www.kester.com.