Tonghua Sanyuanpu Airport (IATA: TNH, ICAO: ZYTN), also known as Tonghua Liuhe Airport, is a dual-use military and civilian airport serving the city of Tonghua in Jilin Province, China. It is located in the town of Sanyuanpu in Liuhe County, 50 kilometers from the city center. Originally a military airport, construction to convert it to civilian use started in October 2009 with a total investment of 370 million yuan. It was opened on 18 June 2014, becoming the fifth civilian airport in Jilin.