Electra Battery Materials is trading up 6.8% in pre-market at $0.47, versus the October 23 close of $0.44, following its October 26 update on refinery construction. * The company confirmed the refinery remains within its US$73 million budget. * The site workforce has significantly grown to 130 from approximately 60. * Despite noting some schedule pressure around solvent-extraction process piping, any adjustment is expected to be modest.