Establishment of Insun Gieop Co.,Ltd.

Acquisition of the licenses for construction waste collection
and transportation and construction waste intermediate treatment

Company name changed (from Insun Gieop Co.,Ltd. to Insun ENT Co., Ltd.)

The industry's first company listed on KOSDAQ

Landfill site acquired (Gwangyang Branch)

South Korea's first plant for producing recycled aggregate for concrete completed

Selected as a pilot project by the Ministry of Environment (Completed the head office
and research center built by using recycled aggregate concrete in their real
structures)

An intermediate construction waste treatment company acquired
(currently, Insun Gieop Co.,Ltd.)

New permission obtained for construction waste intermediate
treatment (currently, Sejong Branch)

Asbestos solidification intermediate treatment business license
acquired (Gwangyang branch)

K-IFRS (the Korean version of International Financial Reporting Standards) adopted early

Waste recycling (shredding & crushing) business launched

1st Sustainability Report published (as the first in the industry)

Certified as New Environmental Technology No. 350

2nd Sustainability Report published

Insun ENT selected as an excellent environmental company
in 2013 (Ministry of Environment)

Automobile Resource Recycling Center completed and the company
went into disassembling and recycling.

The shredding plant completed and the company went into
shredding recycling.

Honored with 2014 Corporate Innovation Grand Prize
(Korea Chamber of Commerce and Industry)

Construction of Sacheon Landfill Site facilities started

Insun Motors selected as an excellent environmental company
in 2017 (Ministry of Environment)

Selected as an excellent waste transporter in 2017
(Sudokwon Landfill Site Management Corp.)

Insun ENT selected as an excellent environmental company
in 2018 (Ministry of Environment)

Selected as a faithful taxpayer by Gyeonggi-do in 2019

Insun ENT's Sacheon Branch (with landfilling) created

Majority shareholder changed

Certified as Environmental New Technology No. 566

Youngheung Industry Environment Co., Ltd. and Paju B&R to be incorporated into subsidiary

Verification as Environmental New Technology No. 252