◆1991 Kotan Limited was established in Hong Kong

◆1993 Kotan Limited set up its first plant in Kwun Tong Hong Kong and second plant in Guan Lan Shenzhen

◆1994 Kotan Limited set up the third plant in Ping Shan Shenzhen

◆1997 All 3 plants were merged together at Ping Shan Shenzhen

◆1998 Approved ISO9002 International Certification

◆2000~2001 The new factory building (No.3) came into use, equipped with Auto plating lines and 10,000ppm clean room facility

◆2002 QS9000 was certified

◆2003 The new factory building (No.4) came into use and the production of multi-layers PCB was started

◆2004 The Library, Entertainment Center, Cyber Bar and Training Center were phased into use

◆2005 Achieve RoHS requirement

◆2006 ISO14000 & TS16949 were certified

◆2007 The OSP/Entek line was set up

◆2009 2 new additional drilling machines were acquired

◆2011 The Immersion Gold plating line was set up

◆2012 The Water Recycling System was set up. By the year end, successfully upgraded factory business structure to meet the domestic sales

◆2013 Shenzhen Kotan Circuits Limited was set up catering for the domestic business. With the corporate restructuring, new capital rectification and management team, more facilities were phased to be added: Ultrasonic cleaning line, Sand Jet cleaning chamber, and AOI etc, in order to enhance the company competitiveness, capabilities and quality.

◆2014

 -Manufacturing the Aluminum board and BT board for the blooming LED market.

 -Renewed and upgraded the production facilities.

 -AOI machine, Grinding machine and X-ray hole position check instrument were acquired.

◆2015

 -Renewed and upgraded the production facilities: additional new automatic screen printing machine were acquired, V-CUT machine and punching machine were replaced

 -Granted the Waste Water Treatment Permit with no date of expiration

 -Land investment in Jiangxi, China. Plan to build 100 thousand square meters production facilities

◆2016

 -Additional AOI machine and film coating equirement were acquired

 -Construct the water treatment facilities in Jiangxi's new factory

◆2017

 -AVI machine was acquired

 -Obtained High-Tech Enterprise Cerification

◆2018

 -Dougguan Gaomai Electronics Limited was established

◆2019

 -Shenzhen factory was relocated to Dougguan factory

 -Gaomai's ISO9000, 14000 and IATF16949 certification were acquired

 -Hunan Kotan Electronics Limited was established

◆2020

 -Haleson PCB Company Limited has joined Kotan Limited

◆2022

 -The set up of Hunan Kotan's new advanced facilities was in progress

◆2023

 -New faciliy line was in operation for serving the Ceramic PCB's market in Hunan Kotan site

◆2024

 -In Q1, Hunan Kotan's new advanced facility was in full operation