GENEVA, May 16 -- GUANGZHOU HUIFU RESEARCH INSTITUTE CO., LTD. (Room 508, Laboratory Building, No. 15 Nanxiang 3 Road, Science City, High-Tech Industrial Development ZoneGuangzhou, Guangdong 510000), 广州汇富研究院有限公司 (中国广东省广州市高新技术产业开发区科学城南翔三路15号实验楼508), HUBEI HUIFU NANOMATERIAL CO., LTD. (No. 66-2 Xiaoting Road, Xiaoting DistrictYichang, Hubei 443000), 湖北汇富纳米材料股份有限公司 (中Þ...