In October 2013, production of passive SMD alarm device.

In July 2013, the CQC certification (X2 Y2 capacitors for electromagnetic interference suppression).

In May 2011, optimization and upgrading of the production process of the buzzer production.

In November 2010, the products obtained total 13 national patents certificate.

In April 2009, the production of active electromagnetic subminiature buzzer.

In August 2008, the production of passive electromagnetic ultra-compact alarm device.

In July 2008, gets the CQC certification (interference suppression capacitor).

In July 2008, gets the CQC certification (interference suppression capacitor).

In May 2006, we takes importing and exporting rights.

In October 2005, we takes Germany VDE certification.

In July, we obtained the United States UL certification.

In December 2004, we start to transfer to producing Rohs compliant products

In June 2004, our technology of movie-type combined SOT obtained the national invention patent certification.

In October 2003, began mass production of metallized film capacitors.

In October 2002,the new purification plant of 8000 square meters was completed to use

In April 2002, Registered 5.08 million to established Xinghua Huayu electron co.

In April 2002, Registered 5.08 million to established Xinghua Huayu electron co.

In August 2000, began production of range of piezo-electronic buzzers and single electronic buzzer.

In May 2000, passed the ISO9000 quality certification.

In October 1998, we move to 6000 square meters clean workshop.

In August 1994, quickly began to produce a series of passive alarm and active separated type electronic buzzer.

In April 1994, more than 150 staff succeeded in establishing the initial production line of buzzer named Huayu electronic factory in Xinghua city.