Jingdezhen is widely regarded as the producer of the best porcelain in China. Jiangxi also was a historical center of Chan Buddhism. Ganju, or Jiangxi opera, is the type of Chinese opera performed in Jiangxi. Gan-speaking people are found primarily in Jiangxi, Fujian, Anhui, Hunan, and Hubei provinces. Jiangxi Gan-speaking enclaves are found in villages scattered across Shangnan, Danfeng, Shanyang, Zhashui, Zhen'an, Hanbin, and Shiquan counties in Shaanxi province. The Mandarin-speaking population of Shaanxi refers to the Gan language as spoken in Shaanxi as Manzihua (), or 'Barbarian speech'. There are roughly 5.3 million Gan Chinese Speakers living in Hubei, mostly concentrated in its eastern region. There are about 20,000 Gan speakers living in Guangdong province, primarily in Nanxiong county and other districts. Hakka-speaking locals refer to the Gan language spoken in Northeastern Guangdong as "Jiangxihua" (). Jiangxi people are also found in Daqiao district in Huidong county in Sichuan province. There are 270,000 Gan speakers mainly living in North-western Fujian. Qiandongnan Miao and Dong Autonomous Prefecture also has a Gan-speaking minority. In Danzhou, Changjiang, and Sanya, some villages speak a "Hakka-Gan dialect". According to the Presbyterian Church in Taiwan, the number of Jiangxi people living in Taiwan is 124,670. Thus the number of Gan speakers is around 100-200 thousand.