2004:   a. Shenzhen Jiujing Company was founded in Shenzhen.

 b. Produced the world's first light strip;

2006:   a. Relocated to Huizhou and renamed Huizhou Guozhan Electronics Co., Ltd.

            b. Became the first enterprise to achieve single-sided roll in mass production in mainland China;

2007:   a. Produced the world's first roll of white PI covering film;

           b. Produced China's first volume of ultra-long double-sided electroplated plate, and successfully produced it               in  small batches;

2008:  a. Reported by China Central Television twice;

   b.  Established a postdoctoral flow station with South China Normal University;

2009: a. Invented an environmentally friendly double-sided board that does not

require electroplating. In order to promote industry development, this technology is implemented and shared in the industry, and currently  50% of the double-sided light strips in the market  is adopting this technology.

b. Invented the patch technology for group pickup and placement. For driving the development of the industry, our company shared this patent in the industry. Currently, 100% of the light strip market adopts this technical                patches;

2010: a. Produced the world's first non etching, fully green and environmentally friendly circuit board and wire plate.

          b. Became a national high-tech enterprise;

          c. Invented the Back Panel FPC;

          d. Mass-produced 35 meters long double-sided electroplated plate.

2011: a. The first company took the gravure technology to produce circuit boards in the world.

          b. Invented the inverted S-shaped light strip plate, which has been widely used in the advertising industry.

          c. Growzing (Tongling) Electronics Co., Ltd. was founded with purchasing 100 acres of land.

2019: Invented the Flat-orifice plate;

2020: Invented the stiffener;

2022: Invented the buried wire COB board;

2022: a. Further improved the technology of ultra long electroplated plates;        

          b. Invested in the construction of an electroplated plate company with an annual output of 100,000 square meters;

          c. The company has been successfully applied for a total of 131 effective invention patents, 106 new patents,                 10 appearance patents and 3 international patents.