(주)필텍

2011 ~ Present

2023

07

Factory relocation (New building in Icheon)
2022

09

Patent application
2021

09

Production line expansion

08

Successfully completed collaborative R&D project with Korea Western Power Co., Ltd. (Project: Localization of HEPA-grade gas turbine filter materials using ePTFE membrane filtration manufacturing technology)

05

KEPCO Trusted Partner Certification

03

R&D Department Authorization (No. 2021151777)
2020

01

Received appreciation plaque from Korea Western Power Co., Ltd. for contribution to localization of power generation facilities
2016

07

Korea Midland Power Co., Ltd. / Korea Western Power Co., Ltd. qualified supplier registration

07

Start supplying gas turbine intake air filters for power generation subsidiaries
2012

10

Company name change [Changwoo Co., Ltd. → FILTECH Co., Ltd.]

2009

05

Registration of 2 patents
- Manufacturing method of cartridge filter for high temperature dust collection
- Pre-filter with three-dimensional micropores
2007

11

Technology Innovation Small and Medium Business (INNO-BIZ) acquisition

04

Company name change [Sambu Filter Co., Ltd. → Changwoo Co., Ltd.]
2006

12

Direct production certificate acquisition / Air filter

10

Patent registration [Cylindrical air filter filter paper ring]
2005

08

Korea Hydro & Nuclear Power Co., Ltd. Quality (Q) Grade Designation
2004

12

Production facility environment improvement [Installation of clean room in production site, expansion of automation equipment]
2003

02

Environmental Management System Certification [ISO 14001 Certification]
2000

12

Quality Management System Certification [ISO 9001 Certification]
1995

06

Factory relocation [Seoul Yeongdeungpo → Paju, Gyeonggi-do]
1985

05

Establishment of Sambu Filter Co., Ltd.