On the afternoon of February 10th, Yongde County People's Government and Yunnan Zhonglang Biotechnology Co., Ltd. held a signing ceremony for the cooperation of the marigold whole industry chain project at the County Forestry and Grassland Bureau, marking the official investment of Yunnan Zhonglang Biotechnology Co., Ltd. in the wave of development of marigold whole industry chain projects under the nut and walnut forest of Lin Cang ,Yong de County.