Samsung Group is a Korean multinational corporation with headquarters located in Samsung Town, Seoul. The group has many subsidiaries, most operating under the Samsung brand, and is the largest commercial group in Korea. Samsung was founded by Lee Byung-Chul in 1938, starting as a small trading company. Three decades later, Samsung Group diversified into industries including food processing, textiles, insurance, securities and retail. Samsung entered the electronics industry in the late 1960s, and the construction and shipbuilding industry in the mid-1970s. After Lee's death in 1987, Samsung split into four corporations - Samsung Group, Shinsegae, CJ and Hansol. Since the 1990s, Samsung has expanded its operations on a global scale, focusing on the fields of electronics, mobile phones and semiconductors, contributing mainly to the group's revenue.

LG Electronics, Inc (LG) is a leading global technology innovation company that produces consumer electronics technology, mobile communications and home appliances. LG Electronics, INC (LG) is a leading global technology innovation company specializing in consumer electronics, mobile communications and home appliance technologies, with more than 84,000 employees working in 112 industries. includes 81 subsidiaries worldwide. LG consists of five business units - home entertainment, mobile communications, home appliances, air conditioning and business solutions. LG is one of the world's leading manufacturers of flat-screen TVs, audio and video products, mobile phones, air conditioners and washing machines. LG continues its efforts to increase LG brand presence globally and maximize profit growth. In particular, LG Electronics will focus on achieving profitable and sustainable growth in the mobile communications and home entertainment industry to strengthen its leadership position in the IT industry, while expanding its market share. its share in the fields of home appliances, air conditioning and business solutions.

Microsoft is an American multinational corporation headquartered in Redmond, Washington. The enterprise specializes in developing, manufacturing, selling software licenses and supporting a wide range of computer-related products and services. Microsoft's founders were Bill Gates and Paul Allen on April 4, 1975. Calculated by revenue, Microsoft Corporation is the largest software manufacturer in the world.

Nokia is one of the world's largest corporations founded in 1865 in Espoo, Finland. It was not until 2016 that HMD Global - a smartphone and tablet development company - officially became the owner of the Nokia brand. With its long history of formation and development, Nokia today still receives trust and choice from customers because of the quality that each product brings.