James Sullivan, a former managing director of Millennium Management LLC’s Asian business, said he joined JPMorgan Chase & Co. as head of Asia telecom research and telecom, Internet and new media strategist. Sullivan, who is based in Singapore, said he plans to rebuild JPMorgan’s telecommunications research team in the region following recent departures of analysts including the former head of Asia telecom research, Timothy Storey. Sullivan previously managed investments in Asian telecom, media, Internet and gaming stocks at Millennium in Singapore.