Nanjing Puzhen Rolling Stock Works is a railway rolling stock

Rolling stock

Rolling stock comprises all the vehicles that move on a railway. It usually includes both powered and unpowered vehicles, for example locomotives, railroad cars, coaches and wagons...

 manufacturer in the People's Republic of China

People's Republic of China

China , officially the People's Republic of China , is the most populous country in the world, with over 1.3 billion citizens. Located in East Asia, the country covers approximately 9.6 million square kilometres...

. It is a subsidiary of China South Locomotive and Rolling Stock Industry (Group) Corporation

China South Locomotive and Rolling Stock Industry (Group) Corporation

China South Locomotive & Rolling Stock Corporation Limited is a state-owned enterprise supervised by the State Council of the People's Republic of China...

.

Nanjing Puzhen has supplied trains to Shanghai Metro Line 3

Shanghai Metro Line 3

Line 3 is an operating line of the Shanghai Metro system. Briefly known as the Pearl Line , it is marked bright yellow in official maps. Line 3 trains also carry a bright yellow colour belt for convenience of identification....

 and Nanjing Metro

Nanjing Metro

The Nanjing Metro is a metro system serving the city of Nanjing, Jiangsu, China. It first opened in 2005, and as of 2011, there are two lines in operation, with of track in operation.-Current system:-Line 1:...

 in partnership with Alstom

Alstom

Alstom is a large multinational conglomerate which holds interests in the power generation and transport markets. According to the company website, in the years 2010-2011 Alstom had annual sales of over €20.9 billion, and employed more than 85,000 people in 70 countries. Alstom's headquarters are...

, and has been named as a future supplier of coaches for UK operator Grand Central Railway.
India's Mumbai Metro One Private Limited

Mumbai Metro

The Mumbai Metro is a rapid transit system being built in Mumbai, India's largest city. The system is designed to reduce the rapidly-growing city's congestion problems, and will be built in three phases over a 15-year period, with overall completion expected in 2021...

(MMOPL) is also using rolling stock manufactured by Nanjing Puzhen. In May 2008, Nanjing Puzhen constructed 16 trains of 4 cars each for the Mumbai Metro, for a total fee of .