China First Heavy was the first heavy machinery factory. It was one of the 156 key projects during the “First Five-Year Plan” period. It was founded in 1954 and is one of the key state-owned key enterprises involved in national security and national economic lifeline. It is a national innovative pilot enterprise, a national high-tech enterprise, a state-level enterprise technology center, a national engineering research center for heavy technical equipment, and a national energy source.

China First Heavy focuses on providing major complete sets of technical equipment, high-tech products and services for steel, nonferrous metals, electric power, energy, automobiles, mining, petroleum, chemical, transportation and other industries and defense industry, and carries out related international trade. The main products are nuclear equipment, heavy-duty containers, large castings and forgings, special products, metallurgical equipment, heavy forging equipment, mining equipment and industrial and mining accessories. For more than 60 years, it has provided more than 3.5 million tons of mechanical products for the national economic construction, and developed more than 400 new products, filling more than 400 domestic industrial product technology gaps and creating hundreds of “firsts”. China has a nuclear primary circuit nuclear power equipment full coverage manufacturing capacity, is China's nuclear island equipment leader, international advanced nuclear island equipment supplier and service provider, is the world's largest supplier of refining hydrogenation reactors, Metallurgical enterprise full process equipment supplier.

At present, China First Heavy is accelerating the promotion and upgrading of traditional products. While doing well in the equipment manufacturing sector, it will vigorously develop new business sectors such as new energy, energy conservation and environmental protection, new materials, agricultural machinery and finance, and strive to form outstanding advantages, reasonable structure and innovation. Driven, open and coordinated development of a new pattern, and strive to build China into a multi-development, multi-polar support of modern enterprise groups.

Nanjing Xinlian Electronics Co., Ltd. (stock code: 002546) is located in the smart grid industry base - Nanjing Jiangning Economic Development Zone. After more than 20 years of rapid development, it has formed business areas such as power information collection, smart energy cloud services, intelligent power distribution equipment and systems, low-voltage complete sets, and power communication detection, focusing on providing integrated energy services and solutions to grid enterprises and enterprise users. .
As one of the major manufacturers of electricity information collection systems in China, the company is one of the few manufacturers in China that can provide a full range of products and solutions from main station software, 230M wireless networking, terminal collection equipment to energy metering equipment. The company has built a number of provincial-level electricity information collection system main stations, and the national standard system for power information collection has been ranked among the best in the national network system for many years.
The company uses the expert technology of the service grid to serve enterprise users, innovate business models, develop new business - smart energy cloud platform, provide customers with water, electricity, gas, heat and other energy monitoring services online, and connect users to meet offline needs. Value-added service systems such as three basic services of electric house monitoring system, power distribution operation and maintenance system, and demand side management system, air conditioning management, park meter reading, demand response, energy management, and photovoltaic monitoring.
In the future, Xinlian Electronics will continue to innovate, guide demand, continuously expand products and services, and become a reliable energy integrated service provider.