China Machinery Industry Group Co., Ltd., China Machinery Equipment Import and Export Corporation, China Machinery Import and Export Corporation. What is the relationship between these three companies

China Machinery Industry Group Co., Ltd., China Machinery Equipment Import and Export Corporation, China Machinery Import and Export Corporation. What is the relationship between these three companies? The full name of China Machinery Import and Export Corporation is China Machinery Import and Export (Group) Co., Ltd., referred to as CMC, and China Machinery and Equipment Import and Export Corporation referred to as CMEC. CMC, formerly known as the Ministry of Foreign Trade and Economic Cooperation, was established in 1950. Same age as the Republic of China. In the era of planned economy, it is the external window of the central government and belongs to a monopoly industry. Later, foreign trade was liberalized, and the company's electromechanical import and export was transformed into engineering contracting. The business scope and company type were basically the same as CMEC. CMEC is a combination of people from a department transferred by the Central Military Commission and some people from the Ministry of Machinery Industry. They are places where hidden dragons crouch tigers and talented people come forth in large numbers.

This is what a friend upstairs said:

China Machinery Industry Group is a central enterprise, formerly known as the Ministry of Machinery Industry of China. After restructuring into a company, it has a number of head offices, wholly-owned subsidiaries and design institutes, covering various fields. China Machinery and Equipment Import and Export Corporation (CMEC) is one of the top companies under SINOMACH, mainly engaged in the import and export of machinery and equipment. In recent years, the development of EPC general contracting in overseas power stations has shown an increasing trend. CMEC also belongs to central enterprises, and the leadership has a deep relationship with the central government. The company is full of talents, and the first general manager is Jia Qinglin.

My unit is China National Machinery Import and Export (Group) Co., Ltd.