| 2013 |
Tan De Technology Company Co., Ltd. was founded in Zhubei City, Hsinchu County, engaged in the manufacture and sales of electronic components and product design, with a capital of NT$20,400,000 |
| 2015 |
Capital increase to NT$250,000,000 |
| 2016 |
The construction of Douliu Factory was completed, and the factory registration certificate was obtained. The factory area is about 7933.92 m2 |
| Passed ISO9001:2015 and ISO/TS16949:2009 injection manufacturing certification |
| 2017 |
The shipment of automotive light guide plates has reached 10% of the global market share |
| 2018 |
Began to enter the field of automotive lighting |
| 2019 |
Completion of the development of light-guiding lighting modules |
| Obtained patents for automotive lighting devices in Taiwan China the United States the European Union and Japan |
| Obtained the invention patent of light guide column structure |
| 2020 |
Completed the development of light guide signal light source module |
| Completed the development of thin automobile headlight assembly and taillight assembly |
| Completed the development of miniaturized headlights for high-end locomotives |
| Completed the development of bicycle miniaturized lights, and obtained the first order for electric bicycle sill-type lights |
| 2021 |
Obtained VSCC certified qualified manufacturers |
| Obtained orders for headlights taillights side direction lights etc. from well-known car manufacturers, and officially became a Tier 1 automotive lighting supplier in the automotive industry |
| In October, the public offering of stock declarations came into effect |
| 2022 |
In April, private equity shares were issued at NT$100,000,000, with a capital of NT$350,000,000 |
| Registered as an emerging stock company in June |
| Obtained the design patent of "Bicycle Light ( Appearance Design )" in China and the European Union |
| 2023 |
Accepted orders for car remodeled headlights and started shipping |
| Passed the greenhouse gas inspection of ISO14064-1:2018 |
| Electric bicycle headlights obtained German StVZO §22a K-mark certification |
| Ultra-thin built-in bicycle headlight ( Integrated Optical Module ) won the global iF 2023 Bicycle Design Award |
