Cummins was founded in February 1919 and is headquartered in Columbus, Indiana, USA. The company provides services to customers through more than 600 distribution agencies and more than 6500 dealer outlets in more than 190 countries and regions around the world. Cummins has more than 44,000 employees worldwide and achieved sales of $18 billion and net income of $1.85 billion in 2011. Dongfeng Cummins diesel generator set adopts Dongfeng Cummins B, C, L series engines, in-line 4-cylinder and 6-cylinder models. The displacement is 3.9L, 5.9L, 8.3L, 8.9L, etc., and the power coverage is 15KW-220KW. The technology is advanced and the performance is reliable.

Guangxi Yuchai Ship Electric Power Co., Ltd. (hereinafter referred to as "Yuchai Ship Electric Power") was originally a subsidiary of Yuchai Co., Ltd., which began to operate independently in January 2022. The company focuses on the R & D, production, sales and service of ship power, power generation and other products. The products are widely used in ships and ocean engineering equipment, power generation, oil drilling and other fields, and are exported to more than 180 countries and regions such as Asia, Europe, America and Africa. The application market includes ports, data centers, governments, real estate, etc. in major inland river basins and coastal provinces and cities at home and abroad, with Huawei, China Mobile, China Telecom, Sinopec, PetroChina and other companies to establish long-term partners. The company's comprehensive annual sales revenue exceeds 4 billion yuan, with an annual production capacity of 50000 engines.

Weifang diesel engine power selection R4105, R6105 engine, power range 30KW-500KW. Weifang diesel generator set quality is stable, cheap and fine. Weichai 6100 series diesel engine is produced by Weifang Diesel Engine Factory, a large national enterprise. It is a new generation of models designed and developed by Weichai in the 1990 s. The design absorbs the advanced design ideas of foreign diesel engines. Weifang diesel generator sets are produced with advanced technology. Its power, economy and reliability are in a leading position among similar diesel engine products, It is a reliable product in the middle power range.

Shanghai New Power Automotive Technology Co., Ltd., formerly known as Shanghai Diesel Engine Co., Ltd., was founded in 1947 and is now affiliated to SAIC. In 1993, it was restructured into a state-owned holding company that issues A and B shares at home and abroad. The company has the industry's first national technology center and post-doctoral workstation, the use of SAIC passenger car standard quality management system and advanced automated production lines. In the course of 75 years of development, the cumulative production of various types of engine more than 2.35 million, products all over the world. In 2021, the company completed the asset restructuring, holding 100 percent of SAIC Hongyan Automobile Co., Ltd., SAIC Fiat Hongyan Powertrain Co., Ltd. 40% of the equity, forming a "vehicle and powertrain" collaborative development pattern. In the powertrain sector, the company continues to increase investment in the traditional power business field, and develop new energy power, forming a "traditional power and new energy power" "dual track" coordinated development pattern.

Volvo (Volvo ), a famous Swedish brand, once translated as Regal. Founded in 1927 in Gothenburg, Sweden, the brand has long been associated with its three core values-quality, safety and environmental protection. The Volvo Group is one of the world's leading manufacturers and service providers of drive systems and aerospace components for trucks, buses, construction equipment, marine and industrial applications, with production sites in 19 countries and customers in more than 180 countries and regions. The Group sells and services its products through its distributors and independent distributors, and its global service network quickly and efficiently addresses customers' spare parts needs and provides other services.

British Perkins (Perkins) Engine Co., Ltd. is a world-famous engine production and sales factory with a long history. So far, the world has provided 15 million sets from 8KW to 1980KW of each power section of the generator set. As a world-renowned Rolls-Royce manufacturer, Perkins is committed to product quality, environment, economy, strict implementation of IS09001, IS014001 standards, products with high emission standards, high economy, high stability, high reliability and other characteristics. Perkins series diesel generator sets are made of diesel engines of Perkins Power Co., Ltd. and generators equipped with AR control without drama excitation. The power grade is 24KW-1800KW, which is deeply loved by users at home and abroad.