In January 2001, SAN-U Optronics was established with a registered capital of 1 million yuan. In March, the "Xiamen University Three Excellence Optoelectronic Technology Research and Development Center" was established;

In October 2002, a photodetector chip packaging workshop and a fusion type fiber optic coupler for optical communication devices were built; Passed ISO9001:2001 quality management system certification in November;

In 2003, the company increased its capital to 3 million yuan; Develop CATV photodetector components and mass produce them;

In 2004, the capital was increased to 6 million yuan; Successfully developed BIDI modules and mass-produced optical communication transceiver modules for export to the Japanese market;

In 2005, moved to the Torch High tech Zone Entrepreneurship Park; In December, it was recognized as a high-tech enterprise;

In 2006, optical communication active devices, modules and other products passed RoHS certification; Products exported to Japan, South Korea, and the United States; Successfully developed and applied 3G RF photodetectors for mobile communication;

In 2007, we successfully developed EPON components for fiber to the home and became a supplier to Hisense, with sales exceeding 10 million yuan;

In 2008, the sales revenue reached 12.5 million, with exports accounting for 40%, achieving the profit target; Build a laser production line and pass the national high-tech enterprise certification;

In 2009, the sales revenue reached 23.1 million, an increase of 85% compared to 2008, making it the main supplier of RF optical components for 3G mobile communication in China; Introduce a fully automatic laser welding production line with international advanced level in April;

In 2010, it achieved equity financing of 9.5 million yuan and increased its registered capital to 13.11 million yuan; The sales revenue reached 34.85 million, an increase of 51% compared to 2009, and a profit of 3.43 million was achieved; Recommended by the Xiamen Development and Reform Commission as a backup enterprise for listing; The establishment of the "Xiamen Key Laboratory for Research and Development and Testing of Optical Communication Devices" has been approved; Passed ISO9001:2008 quality management system certification;

In 2011, we achieved equity financing of 7 million yuan and increased our registered capital to 21.97 million yuan; Achieved sales revenue of 35.41 million and profit of 3.54 million; Build a domestically leading chip automatic packaging production line; Pass the review of high-tech enterprises; In July, the shareholding system transformation was completed and an employee congress was established.

In 2012, the registered capital increased to 25 million; Achieved sales revenue of 54.83 million and profit of 4.1 million; Obtained the "2012 Xiamen Innovative Enterprise" certificate; ISO9001:2008 quality management system certification approved by SGS;

In 2013, achieved sales of 68.18 million and a profit of 4.16 million; The development of automated mass production technology for optical devices has been supported by the National Innovation Fund; The "High speed optical transceiver module applied to fiber to the home" won the third prize of Xiamen Science and Technology Progress Award; Rated as an innovative pilot enterprise in Fujian Province. Through multiple major customer certifications, products enter the global supply chain of telecommunications operators.The company was rated as a growth oriented small and medium-sized enterprise in Xiamen from 2009 to 2013 and obtained a certificate;

In 2014, the "40G QSFP+Active Fiber Optic Cable Applied to Cloud Computing High Speed Data Communication" was supported by the Xiamen Taiwan Science and Technology Cooperation Project; Named as the most growing small and medium-sized enterprise in Xiamen from 2014 to 2015.

In August 2014, it was listed on the "New Third Board" with the abbreviation of SAN-U Optronics and the securities code of 831055.

In April 2015, employee shareholding was completed, and in June, a targeted increase of 22 million yuan was issued. In July, a wholly-owned subsidiary, Xiamen Sanyou Optoelectronic Interconnection Technology Co., Ltd., was registered and established in the Haicang Free Trade Zone of Xiamen.

In June 2015, the large-scale automated production of 10G optical components applied to cloud computing was supported by the Xiamen Science and Technology Plan project.

In 2016, as the leading unit, the research and industrialization of marine three-dimensional monitoring sensors and systems was supported by the Xiamen National Marine Economic Innovation and Development Demonstration Project during the 13th Five Year Plan period;

In 2017, the "High Performance SiC Semiconductor UV Detector" won the Excellent Technology Award in the China Innovation and Entrepreneurship Competition;

In 2018, participating in the "Nuclear High Base" major science and technology special project "Integrated Microfluidic Control System for Traditional Chinese Medicine Drug Screening and Drug Property Research" was approved and supported by the Ministry of Industry and Information Technology of the People's Republic of China;

In 2019, the "Research and Development of Silicon Carbide Power Devices/Modules and Their Application in Photovoltaic Inverters" project, as the leading unit, received significant scientific and technological support from Xiamen City;

In 2020, the project of "R&D and Industrialization of 25Gbps Receiver Chips and Components Applied to 5G Carrier Network Devices" was supported by the Xiamen Major Science and Technology Plan.