Guangdong Securities, China Science and Technology Securities, Zhongguancun Securities. According to the newspaper's inquiry, Guangdong Securities, China Science and Technology Securities and Zhongguancun Securities were reorganized in a brand-new way and named Essence Securities with a registered capital of 800 million to 654.38 billion yuan. Because Guangdong Securities has a large number of sales offices in Guangdong, while China Science and Technology Securities and Zhongguancun Securities have sales offices in the north, this three-in-one reorganization is conducive to turning Essence Securities into a national large brokerage firm. A securities company refers to a limited liability company or a joint stock limited company with independent legal personality, which is established with the approval of the the State Council securities regulatory authority in accordance with the provisions of the Company Law and the Securities Law and specializes in securities business.