GHTOT mainly engaged in opto-mechatronics integration, new materials development of technology, technology transfer, technical consultation and services, laser crystals, optic crystals manufacturing, processing and marketing竊�ptical communication devices, laser and parts, semiconductors, lighting equipments packaging and marketing , import & export self-operated and agent. After completing the project, GHTOT can provide 30M/per year TIE sapphire substrate material