Keystone Electronics is part of the Global Tech Group of Companies The other two companies within the group are Global Tech China and China Gateway.   Global Tech China is a design and development house, working for predominantly European and North American clients and using the skill sets of both its own personnel, together with a range of carefully selected sub-contractors in Hong Kong and China, including software and firmware engineers.  China Gateway takes customer exisitng products and arranges lower cost manufacture of the same in China.