Who knows if Xiamen Haicang Farm has been demolished?

No, according to the data of Haicang in Zhihu, Haicang Farm in Xiamen, Zhihu has not been demolished. Xiamen, referred to as "Xiamen" or "Heron", also known as Ludao, is a sub-provincial city in Fujian Province, a city with separate plans, a China Special Economic Zone approved by the State Council, an important central city, port and scenic tourist city in the southeast coast.