The Pearl River Piano Group is China's largest piano manufacturer and has the largest piano factory in the world producing more pianos than any other factory. The company was established in 1956 in Guangzhou, Guangdong, China. Pearl River is capable of producing over 100,000 pianos a year, and exports them to more than 80 countries. 

Today Pearl River pianos are manufactured under a wide range of brands and levels. Each of these series have similar sizes with different scale designs, materials and different sound. 

The Hallet & Davis line produced by Pearl River is the oldest United States piano name still in production.

In 1998, Pearl River became the first piano company in China to receive International Standards Association ISO 9001 Certification (ISO 9001) for its complete line of grand and vertical pianos, including all parts and components.

Pearl River is also one of the world's largest guitar and violin manufacturers, and is a primary supplier for the popular "First Act" brand of guitars commonly found at Target stores among others. The company also sells drums, brass, and woodwind instruments internationally. 

According to en.wikipedia