Emihus Microcomponents Limited and
Newlyn Electronics Ltd.
Emihus Microelectronics was a joint venture between EMI (Electrical and Musical Industries) of the UK and Hughes Aircraft of the U.S.A., and based at Clive House, 12-18 Queen's Road, Weybridge, Surrey. The company was a major UK producer of LSI integrated circuits. It is reported that it manufactured this calculator model for Hanimex and then introduced its own Gemini range.
Source : vintagecalculators.com