Yunnan Yuntianhua Co., Ltd. (Yuntianhua, SH: 600096) said on August10th it will invest RMB 120 million to build a complex for advancedenergy materials in Yanjia Industrial Park in Chongqing. The complexwill include a research and development center for advanced materialsand manufacture facilities for downstream products ofpolyoxymethylene(POM) as well as high-performance microporous membrane.