May 1997

Move in self-build Factory . BP- call buzzer annually sales volume over 20KKpcs . the domestic market share above 35%

Self-build Factory 2300m2

Set up a Shenzheng office

Nov, 2000

Became one of LG outstanding suppliers of global resources. 

In 2002, passed ISO9001

In 2003 

start up production of wireless telephone loudspeaker and receiver SP/SD series.

2005 Start up micro-speaker for mobilephone . annual sales volume over 30KK pcs

In 2005

Qinglong entered automotive supplier chain and began to supply automotive parts (Speaker, Buzzer ) to Shanghai (Delco) apply to vehicle dash-board

Aug, 2006

Approved by Panasonic quality system , became its global supplier (Japan, Guangzhou, Taiwan, Hangzhou).

In 2007

passed ISO14001

8500m2

In 2008

Increased 2nd plant  8500m2   , Qinglong become a valued partner of Avnet Europe .

In 2009

Qinglong became a supplier of Johnson Controls (Europe and China) . provided speaker and Buzzer applied on instrment cluster for Daimler project.

In 2009 Oct

We Obtained TS16949 certification

In 2012

Established new plant in Changzhou JingKai district , Upgraded precision tooling workshop. Expanded audio product lines.

12800m2 Self-build Factory 12800m2

In 2016

Company headquarter moved in new factory .

In 2017

Launched ultrasonic sensor division .  Application for flow meter and vehicle   

In 2018 May

Upgraed the version TS to IATF 16949

3rd  Plant  25000m2

Our 3rd factory in construction from  Oct.2019, will be completed in 2020.