Business Area

Business Area

Business Area

Palo

Palo

Palo

A new-concept golf club cleaner featuring powerful ultrasonic cleaning technology combined with offline advertising services.

A new-concept golf club cleaner featuring powerful ultrasonic cleaning technology combined with offline advertising services.

A new-concept golf club cleaner featuring powerful ultrasonic cleaning technology combined with offline advertising services.

GCS

GCS

GCS

A golf club cleaner equipped with powerful ultrasonic cleaning technology and card payment functionality.

A golf club cleaner equipped with powerful ultrasonic cleaning technology and card payment functionality.

A golf club cleaner equipped with powerful ultrasonic cleaning technology and card payment functionality.

Graphene

Graphene

Graphene

We are developing a product using an innovative material characterized by a two-dimensional honeycomb lattice of carbon atoms, exhibiting exceptional physical and chemical stability as a thin film material.

We are developing a product using an innovative material characterized by a two-dimensional honeycomb lattice of carbon atoms, exhibiting exceptional physical and chemical stability as a thin film material.

We are developing a product using an innovative material characterized by a two-dimensional honeycomb lattice of carbon atoms, exhibiting exceptional physical and chemical stability as a thin film material.

GreatChallenge Co., LTD

CEO : Cho Yongrak

l

BRN : 348-87-03064

l

E-Business Registration : 2023-서울마포-3395

l

4th Floor, Hongik Jeil Building, 107 Donggyo-ro, Mapo-gu, Seoul, South Korea

l

02-6371-0235

l

help@gici.kr

GreatChallenge Co,. Ltd. All rights reserved.

GreatChallenge Co., LTD

CEO : Cho Yongrak

l

BRN : 348-87-03064

E-Business Registration : 2023-서울마포-3395

4th Floor, Hongik Jeil Building, 107 Donggyo-ro, Mapo-gu, Seoul, South Korea

02-6371-0235

l

help@gici.kr

GreatChallenge Co,. Ltd. All rights reserved.

GreatChallenge Co., LTD

CEO : Cho Yongrak

l

BRN : 348-87-03064

l

E-Business Registration : 2023-서울마포-3395

l

4th Floor, Hongik Jeil Building, 107 Donggyo-ro, Mapo-gu, Seoul, South Korea

l

02-6371-0235

l

help@gici.kr

GreatChallenge Co,. Ltd. All rights reserved.

GreatChallenge Co., LTD

CEO : Cho Yongrak

l

BRN : 348-87-03064

l

E-Business Registration : 2023-서울마포-3395

l

4th Floor, Hongik Jeil Building, 107 Donggyo-ro, Mapo-gu, Seoul, South Korea

l

02-6371-0235

l

help@gici.kr

GreatChallenge Co,. Ltd. All rights reserved.