SAMSUNG

Samsung is a South Korean multinational conglomerate company headquartered in Samsung Town, Seoul. It comprises numerous subsidiaries and affiliated businesses, most of them united under the Samsung brand, and is the largest South Korean chaebol (business conglomerate).

Samsung was founded by Lee Byung-chul in 1938 as a trading company. Over the next three decades, the group diversified into areas including food processing, textiles, insurance, securities and retail. Samsung entered the electronics industry in the late 1960s and the construction and shipbuilding industries in the mid-1970s; these areas would drive its subsequent growth. Following Lee's death in 1987, Samsung was separated into four business groups – Samsung Group, Shinsegae Group, CJ Group and Hansol Group. Since 1990s, Samsung has increasingly globalized its activities and electronics, particularly mobile phones and semiconductors, have become its most important source of income.

Notable Samsung industrial subsidiaries include Samsung Electronics (the world's largest information technology company measured by 2012 revenues, and 4th in market value), Samsung Heavy Industries (the world's 2nd-largest shipbuilder measured by 2010 revenues), and Samsung Engineering and Samsung C&T(respectively the world's 13th and 36th-largest construction companies). Other notable subsidiaries include Samsung Life Insurance (the world's 14th-largest life insurance company), Samsung Everland (operator of Everland Resort, the oldest theme parkin South Korea) and Cheil Worldwide (the world's 15th-largest advertising agency measured by 2012 revenues). 

     Samsung has a powerful influence on South Korea's economic development, politics, media and culture and has been a major driving force behind the "Miracle on the Han River". Its affiliate companies produce around a fifth of South Korea's total exports. Samsung's revenue was equal to 17% of South Korea's $1,082 billion GDP.

NOKIA

Nokia Corporation (Finnish: Nokia Oyj, Finnish pronunciation: is a Finnish multinational communications and information technology company, founded in 1865. Nokia is headquartered in Espoo, Uusimaa, in the reater Helsinki metropolitan area.^[1] In 2014, Nokia employed 61,656 people across 120 countries, did business in more than 150 countries and reported annual revenues of around €12.73 billion. Nokia is a public limited-liability company listed on the Helsinki Stock Exchange and New York Stock Exchange. It is the world's 274 th-largest company measured by 2013 revenues according to the Fortune Global 500. The company is a component of the Euro Stoxx 50 stock market index.

The company has had various industries in its 150-year history, originally founded as a pulp mill, and currently focuses on large-scale telecommunications infrastructures, and technology development and licensing. Nokia is also a major contributor to the mobile telephony industry, having assisted in development of the GSM and LTE standards, and was, for a period, the largest vendor of mobile phones in the world. Nokia's dominance also extended into the smart phone industry through its Symbian platform, but was soon overshadowed by competitors. Nokia eventually entered into a pact with Microsoft in 2011 to exclusively use its Windows Phone platform on future smart phones. Its mobile phone business was eventually bought by Microsoft in an overall deal totaling €5.44 billion (US $7.17 billion).^[9][10] Stephen Elop, Nokia's former CEO, and several other executives joined the new Microsoft Mobile subsidiary of Microsoft as part of the deal, which was completed on April 25, 2014. 

Since the sale of its mobile phone business, Nokia began to focus more extensively on its telecommunications infrastructure business, marked by the divestiture of its Here Maps division, its foray in virtual reality, and the acquisitions of French telecommunications company Alcatel-Lucent and digital health maker Withings in 2016

Apple Inc.

Apple Inc. is an American multinational technology company headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software, and online services. Its hardware products include the iPhone smart phone, the iPad tablet computer, the Mac personal computer, the iPod portable media player, and the Apple Watch smart watch. Apple's consumer software includes the OS X and iOS operating systems, the iTunes media player, the Safari web browser, and the iLife and iWork creativity and productivity suites. Its online services include the iTunes Store, the iOS App Store and Mac App Store, and iCloud.

Apple was founded by Steve Jobs, Steve Wozniak, and Ronald Wayne on April 1, 1976, to develop and sell personal computers. It was incorporated as Apple Computer, Inc. on January 3, 1977, and was renamed as Apple Inc. on January 9, 2007, to reflect its shifted focus toward consumer electronics. Apple (NASDAQ: AAPL) joined the Dow Jones Industrial Average on March 19, 2015. 

Apple is the world's largest information technology company by revenue, the world's largest technology company by total assets, and the world's second-largest mobile phone manufacturer. In November 2014, in addition to being the largest publicly traded corporation in the world by market capitalization, Apple became the first U.S. company to be valued at over US$ 700 billion. The company employs 115,000 permanent full-time employees as of July 2015 and maintains 475 retail stores in seventeen countries as of March 2016. It operates the online Apple Store and iTunes Store, the latter of which is the world's largest music retailer. There are over one billion actively used Apple products worldwide as of March 2016.

Apple's worldwide annual revenue totaled $233 billion for the fiscal year ending in September 2015. To put this into perspective this revenue generation accounts for approximately 1.25% of the total United States GDP. The company enjoys a high level of brand loyalty and, according to the 2014 edition of the Inter brand Best Global Brands report, is the world's most valuable brand with a valuation of $118.9 billion. By the end of 2014, the corporation continued to receive significant criticism regarding the labor practices of its contractors and its environmental and business practices, including the origins of source materials.

LG Electronics Inc. (Korean)

LG Electronics Inc. (Korean) is a South Korean Multinational Electronics Company headquartered in Yeouido-dong, Seoul, and a member of the LG Group, employing 82,000 people working in 119 local subsidiaries worldwide. With 2014 global sales of USD 55.91 billion (KRW 59.04 trillion), LG comprises four business units: Home Entertainment, Mobile Communications, Home Appliance & Air Solution, and Vehicle  Components. CEO of LG Electronics is Bon-joon Koo, who assumed the role of Vice Chairman of LG Electronics on 1 October 2010. In 2011, LG Electronics was the world'ssecond-largest television manufacturer.

LG Electronics manufactures a wide range of smartphones and tablet devices. Other than the G3, LG officially unveiled the curved smartphone, G Flex, on 27 October 2013. LG has released it in South Korea in November 2013, and later announced releases in Europe, the rest of Asia, and North America. At Consumer Electronics Show in January 2014, LG announced an U.S. release for the G2 across several major carriers. In 2015, LG has released LG G4 globally in late May through early June. 

ZTE Corporation

ZTE Corporation is a Chinese multinational equipment and systems company headquartered in Shenzhen, Guangdong, China.

ZTE operates in three business units - Carrier Networks (54%)-Terminals(29%)-Telecommunication(17%). ZTE's core products are wireless, exchange, access, optical transmission, and data telecommunications gear; mobile phones; and telecommunications software. It also offers products that provide value-added services, such as video on demand and streaming media. ZTE primarily sells products under its own name but it is also an OEM. 

ZTE is one of the top five largest smart phone manufacturers in its home market, and in the top ten, worldwide

Huawei Technologies Co. Ltd

Huawei Technologies Co. Ltd is a Chinese multinational networking and telecommunications equipment and services company headquartered in Shenzhen, Guangdong. It is the largest telecommunications equipment manufacturer in the world, having overtaken Ericsson in 2012.

Huawei was founded in 1987 by Ren Zhengfei, a former engineer in the People's Liberation Army. At the time of its establishment Huawei was focused on manufacturing phone switches, but has since expanded its business to include building telecommunications networks; providing operational and consulting services and equipment to enterprises inside and outside of China; and manufacturing communications devices for the consumer market. Huawei has over 170,000 employees as of September 2015, around 76,000 of whom are engaged in research and development (R&D). It has 21 R&D institutes in countries including China,

The United States, Canada, the United Kingdom Kingdom, Pakistan, France, Belgium, Germany, Colombia, Sweden, Ireland, India, Russia, and Turkey, and in 2013 invested US$5 billion in R&D, increased to $6.4bn in 2014.

In 2014, Huawei recorded profit of 34.2 billion CNY (5.5 billion USD). Its products and services have been deployed in more than 140 countries and it currently serves 45 of the world's 50 largest telecoms operators