The Tiancheng Fluorphlogopite Mica Company Ltd. in Changchun City, an economic organization of research, production and business is located in the New and High Technology Developing Zone of Changchun.

• 长春市天成氟金云母有限公司地处长春市高新技术产业开发区。是集科研、生产、经营为一体的高科技经济实体。