(Eric) White & Allcock founded CXG in approx. 1981. The name was later changed to CXG Newcrest Technology Limited. There is very little written about the history of CXG.
Based on packaging and computer labeling, Newcrest Technology LTD. seems to be the predominant name of the manufacturing company who produced electronic chess computers for CXG White & Allcock in Hong Kong.
It is possible that Newcrest Technology Ltd. was a subdivision of the Australian electronic corporation Newcrest Mining Limited. The ROM chips inside all the CXG computers were marked with the name NEWCREST.
CXG Newcrest Technology also sold their chess computers to many other leading suppliers of electronic chess computers. Systema, Radio Shack and Schneider are just a few examples of the many companies who sold CXG chess computers under their own Brand Names.
In 1988 CXG began introducing the Sphinx brand to their range. The last few models were manufactured by National Telecommunications in 1992.
CXG for a brief period of time developed and produced chess computers for Fidelity Electronics Inc.
Excalibur Electronics began their operations by selling CXG, shortly followed by Krypton chess computers either under the Excalibur Brand and in some cases co-branded.
CXG ceased selling new computers themselves in 1992. The only computers originating from CXG during 1993 were sold through Excalibur Electronics Inc. of Miami, Florida.
In 1994 Eric White began selling a new range of computers under the Krypton brand, initially manufactured by Timorite Limited of Hong Kong.