In December of 2012, Dinghan signed a  Hong Kong high iron signal system of power supply equipment supply contract. In recent years, Chinese Dinghan have been the firm develop overseas market, the Hong Kong high iron project from preparation to sign for a year and a half, during the project scheme through clarification, Hong Kong iron owner investigation, project expert evaluation and so on, the tripod with Dinghan technology and great strength got port iron owner and integrators recognition, finally signed a contract.

Hong Kong high iron bidding auto-id have to follow the international project management pattern. Strict and standard project evaluation, bid evaluation experts reading technical scheme is very meticulous, for each bid supplier inspection is very strict, objective and careful. Dinghan has been adhering to the "efficient · pragmatic, innovation" attitude specification product design, production, make the products keep improving. In the face of the MTR owner and integrators strict screening, Dinghan company finally with first-class technology scheme report through the layers of audit, signed a contract, this is the Chinese company strict product quality and technical innovation results, the company is in all respects the result of accumulated for a long time.

In recent years, the domestic high speed railway bidding today is becoming increasingly international, the comprehensive strength of the requirements of suppliers is becoming more and more strict, whether technical scheme, project management or process quality control, in all aspects of the standard is to emulate the international standard. Facing the increasingly improvement of standard, Dinghan  company has constantly input technology research and development, improve the service standards, and strive to achieve international standards, set up the solid brand image, for the domestic and foreign rail transit to provide first-class products and quality service.