Dr. Helen LU, works in Technological and Higher Education Institute of Hong Kong. Her research activities have been focusing on solid waste disposal for regenerating value-add products, and in the following three main areas in particular: bioleaching of valuable metals from spent batteries; recycling of valuable metals for energy storage materials. She have successfully obtained over HK$10 million research funding from external and internal resources She have published over 30+ papers in peer-reviewed international journals and 4 patents.