; (v) potential end-users of new technologies (such as users of high-temperature process heat for manufacturing processing, including petrochemical companies, manufacturers of metals, or manufacturers of concrete); and (vi) developers of advanced nuclear reactor technology. (3) Additional requirements In carrying out demonstration projects under paragraph (1), the Secretary shall— (A) identify candidate technologies that— (i) are not developed sufficiently for demonstration within the initial required timeframe described in paragraph (1)(A); but (ii) could be demonstrated within the timeframe described in paragraph (1)(B); (B) identify technical challenges to the candidate technologies identified in subparagraph (A); (C) support near-term research and development to address the highest-risk technical challenges to the successful demonstration of a selected advanced reactor technology, in accordance with— (i) subparagraph (B); and (ii) the research and development activities under section 958; and (D) establish such technology advisory working groups as the Secretary determines to be appropriate to advise the Secretary regarding the technical challenges identified under subparagraph (B) and the scope of research and development programs to address the challenges, in accordance with subparagraph (C), to be comprised of— (i) private-sector advanced nuclear reactor technology developers; (ii) technical experts with respect to the relevant technologies at institutions of higher education