Complex sentence: Tengchong is known for its jade culture and for its geothermal springs and the Lisu minority, the small city has actually grown into the biggest processing and trade center of jadeite in Southeast Asia.
Split into simpler sentences: Tengchong is known for its jade culture and for its geothermal springs and the Lisu ethnic group. The city has actually grown into the biggest processing and trade center of jadeite in Southeast Asia.