Bayer is a global pharmaceutical giant. Bayer Company was founded by Friedrich Bayer in Germany in 1863. On March 6, 1899, Bayer obtained the registered trademark of aspirin, which later became the most widely used and well-known pharmaceutical brand in the world, and was called "the medicine of the century", which brought unimaginable huge profits to Bayer. In 1925, the company merged with several other chemical companies to establish the French chemical industry company, which was dismantled after the war. In 1951, it became an independent French company, called Bayer Pigment Company, and in 1972 it was named "Bayer Company". Headquartered in Leverkusen, Germany, the company has 75 production plants in 2 locations on six continents. It has 12, employees and 35 branches, almost all over the world. Polymer, medical care, chemical industry and agriculture are the four pillar industries of the company. With more than 1, kinds of products, the company is the largest industrial group in Germany. The history of Bayer's development is the constant pursuit of higher quality of life. At present, the main products listed in China are: Baixintong, Xipule, Meike, Baitangping, Nimotong, Youtuo, Youmai, Tesler and Buys Ming -25. Bayer Company is currently divided into three sub-groups, namely: Bayer Material Technology, Bayer Crop Science and Bayer Medicine. This enterprise ranked 158th in the ranking of Fortune 5 companies in the world in 27. Bayer (1835 ~ 1917) Bayer, Adolf von Merck kgaa (Merck) was founded in 1668 and headquartered in Darmstadt, Germany. It is an internationally renowned chemical and pharmaceutical company. Branches have been set up in 56 major countries all over the world. The agent of China Branch is Dubang Electronic Products Co., Ltd. Tel: 21-52191613, among which 8 production bases have been set up in 28 countries with 28,3 employees. Merck is famous for its strict requirements on product quality. Merck is not only the first company in the world to synthesize vitamins C,B,E and K, but also a world leader in liquid crystal manufacturing, iridin pearlescent pigments, laboratory products and ultra-pure chemicals in semiconductor industry. Merck Company (named "Merck Company" in the United States), a world leader in pharmaceutical enterprises, headquartered in New Jersey, USA, is a multinational pharmaceutical enterprise focusing on scientific research and devoted to research, development and sales of innovative pharmaceutical products. In 1889, George Merck took over the branch of German Merck in new york and founded Merck in the United States, namely Merck. According to the agreement between Merck in Germany and Merck in the United States, Merck can only use the name "Merck" in North America. (American Merck is different from German Merck: Due to the successful export business in the United States, Merck established a branch in new york in 1887. In 1889, George Merck, the grandson of Heinrich Emanuel Merck, took over the operation. In 1891, Merck &; Co. established. Merck lost many overseas subsidiaries during World War I, including Merck &; Co.。 Today, the two companies have no connection except the name "Merck" with the same name. In response to commercial needs, both parties agree that in the United States and Canada, "Merck" belongs to Merck & Co is exclusively used, while in Europe and other parts of the world, "Merck" is exclusively used by Merck of Germany. Correspondingly, Merck &; Co's business operations outside North America shall be conducted under the name of Merck Sharp &; Dohme or MSD Sharp &; In the name of Dohme (Merck). The business of Merck & Co., Ltd. in North America will be carried out in the name of EMD (EMD). )