BillionaireNet
family
Zheng Jianjiang & family
Rank #1604
CHINAManufacturingElectrical equipment

Zheng Jianjiang & family

Net Worth
$2.468B
-2.45% (24h)
Zheng Jianjiang, a prominent figure in the Chinese business landscape, is the founder and chairman of the Aux Group. His career began in the 1980s, and he has since built Aux Group into a major conglomerate with interests in electrical equipment, home appliances, real estate, healthcare, and finance. As of December 2025, Zheng Jianjiang & family's net worth is estimated at $2.4 billion, reflecting his success in the manufacturing sector and strategic diversification of his business interests. He is known for leading Aux Group to be one of China's largest air conditioner manufacturers and for his involvement in philanthropic activities.

The Full Dossier

Early Life

Zheng Jianjiang was born in Ningbo, Zhejiang, China, on March 1, 1961. He started his career as a mechanic.

Rise to Success

At the age of 25, Zheng acquired a debt-ridden factory, the predecessor of Aux Group, initially involved in manufacturing antennas and electricity meter covers. He expanded the business to include electricity meter manufacturing in 1990 through Ningbo Sanxing Meter Factory (now Ningbo Sanxing Electric). Aux Group later ventured into air conditioner manufacturing in 1994, real estate in 2000, and telecommunications in 2002. Zheng Jianjiang is the founder and chairman of Aux Group, a conglomerate and controlling shareholder of Ningbo Sanxing Medical Electric. Zheng cofounded Ninbo Sanxing Medical Electric in 2007 and took it public in Shanghai in 2011. Ninbo Sanxing supplies power distribution equipment such as smart meters and transformers.

Key Business Strategies

Zheng Jianjiang's strategic vision led to the diversification of Aux Group, expanding beyond its core air conditioning business into various sectors, including real estate, healthcare (with its own network of hospitals), and finance. This diversification played a key role in building the family's wealth. Aux Group has over 40,000 employees, 15 manufacturing bases, and 7 R&D centers worldwide.

Philanthropy

CHINT, a company connected to Zheng Jianjiang, has donated more than $71.4 million to social welfare undertakings. Aux Group has donated RMB 315 million to various public programs.

Career Timeline

2024

Re-designated as Non-Executive Director

Re-designated as non-executive Director of AUX International Holdings Limited.

2011

Ningbo Sanxing Medical Electric went public

Took Ningbo Sanxing Medical Electric public in Shanghai.

2007

Cofounded Ningbo Sanxing Medical Electric

Cofounded Ninbo Sanxing Medical Electric.

1986

Founded Aux Group

Acquired a debt-ridden factory, the predecessor of Aux Group.

1986

Started Career

Began working at a bankrupt watch parts factory.

Philanthropic Impact

Social Welfare$71.4M

Social Welfare Undertakings

Donations to social welfare undertakings by CHINT.

Public Programs$44M

Public Programs

Donations to various public programs by Aux Group.

Wealth Trajectory