| 1968 |
Deng opens Winge PCB workshop there were only 3 PCB manufacturing plants in Hong Kong at the time |
| 1978 |
Electrical printing machines introduced to replace manual printing process |
| 1980 |
Dynamite Nobel acquisition of the company. |
| 1982 |
First PCB manufacturer in the world to use punching method on CEM-3 materials by improvement done on the punching tools |
| Became an IPC member |
| 1983 |
Relocate to a bigger facility in Cheung Sha Wan to accommodate the first fully automatic printing line in Hong Kong. |
| 1988 |
Established our first manufacturing plant in Shenzhen, China. |
| 1990 |
HT AG acquisation of Dynamite Nobel in Germany. Incorporate of HT Circuits Ltd. while maintaining the Chinese company name which had a strong reputation within the industry |
| 1995 |
Relocate our Hong Kong plant to Dongguan, China. The new location is twice the size of the Hong Kong plant. |
| 1997 |
Obtained ISO 9001 quality management standard. |
| 1998 |
Obtained QS 9000 quality management standard. |
| 1999 |
Obtained ISO 14001 Environmental management system |
| 2001 |
Established a third plant in Qingdao. |
| 2002 |
Joint venture facility established in Shajing for double-sided PCB manufacturing |
| Multilayer board capability introduced to our Shajing plant. |
| 2004 |
Obtained TS16949 quality management standard. |
| Obtained OHSAS18000 Occupational Health and Safety management standard. |