Our head office is in Hong Kong, and has our own factory in China (Guangdong). The factory has an area of 30000 square metre. We have over 10 years experience in designing and manufacturing toroidal transformers. In Keen Ocean, we believe that people are the most important asset of a company. So we constantly upgrade the quality of our people. Appropriate trainings have been provided to all our workers. Our technical people are constantly upgraded by experience and outside programs. After years of developments, our factory have been approved by TUV and UL, and also got ISO9001:2000.