About Us

Selected for Main-Biz(Management Innovation Business) by Ministry of SMEs and Startups

Selected for POSCO STEELEON PsHP(POSCO STEELEON Honored Partner)
Achieved ISO 14001 certification for Environment Management System

Established KRST JRB Co., Ltd. to focus on supplying rollers, belts, and cleaning equipment for automotive clients.

Merged with PNX LAB Co., Ltd., establish the Kiln Division, and opened the Cheonan Office.

Signed a dealership agreement with YOGO Ceramic in Japan for Ceramic Saggar product sales.

Signed a V.A.R. dealership agreement with NCCM in U.S.A.

Entered into a technology partnership with TAKASAGO Industry in Japan for heat treatment kiln (Kiln) solutions and acquired the domestic sales rights previously held by TJ Tech Co., Ltd.

Partnered with TAKASAGO Industry in Japan for the 2024 InterBattery Exhibition (COEX, Seoul) and signed an MOU.

Merged with Hwasung P.T.E. Co., Ltd., adding power transmission device manufacturing and sales to its business portfolio.

Invested KRW 600 million in PNX LAB Co., Ltd., a heat treatment kiln design and engineering company.

Received the Minister of Finance Award as a Model Taxpayer on the 57th Taxpayer Day.

Relocated and expanded the Dangjin Factory (Hapdeok-eup, Dangjin, Chungnam), closed the Asan Factory, and transferred the Spindle Division to the Dangjin Factory and Gwangmyeong Office (Iljik-ro, Gwangmyeong, Gyeonggi-do).

Reaffirmed as an Innovation-Driven SME (Inno-Biz) by the Ministry of SMEs and Startups.

Acquired Hwasung P.T.E. Co., Ltd., a manufacturer of power transmission devices, in Yeongdeungpo-gu, Seoul.

Contributed to POSCO Naengcheon flood recovery efforts and completed performance restoration of the STS No. 3 APL(#0 Brush Unit).

Secured Roll Mill orders for POSCO Future M’s cathode material factories in Pohang works, and Canada works.

Acquired sales rights of NI TECH Co., Ltd. and opened the Yongdong Office in Yeongdong-eup, Chungbuk.

Successfully completed the POSCO STS No. 3 APL restoration including Brush Unit and related equipment from fire accident,

Expanded and relocated the Gwangyang Factory (Gangbyeon-ro, Okgok-myeon, Gwangyang, Jeonnam) and increased capital to KRW 681,170,000.

Selected for POSCO PHP(POSCO Honored Partner), with ongoing participation through 2024.

Expanded and relocated the Engineering Center, Ceramic Processing Plant, and Equipment Assembly Plant to G1 and G2 Factories in Wangsin-ri, Gangdong-myeon, Gyeongju, Gyeongbuk.

Increased capital for Zhangjiagang Daebang Roll Co., Ltd. in China (USD 560,000)
designated as a Family Company by the Korea Energy Technology Institute.

Established a corporate research institute (certified by the Korea Industrial Technology Association), recognized as an Innovation-Driven SME (Inno-Biz) by the Ministry of SMEs and Startups, and awarded as an Outstanding Corporate Citizen by POSCO.

Achieved ISO 9001 certification for Quality Management and was designated as a specialized material and component company by the Ministry of Trade, Industry, and Energy.

Rebranded as KRST Co., Ltd., updating the corporate identity (CI) and website.

Participated in the Hyundai Steel Technology Fair.

Secured investment from HOTANI in Japan for Zhangjiagang Dabang Roll Co., Ltd. in China, with a capital increase to USD 280,000.

Expanded the Brush Factory (Dico Co., Ltd., now B Factory) in Wangsin-ri, Gangdong-myeon, Gyeongju, Gyeongbuk.

Acquired Hitech Industry in Gwangyang, Jeonnam, which was later merged in December 2021.

Merged with Jina Materials Co., Ltd. (now C Factory), increasing capital to KRW 617,170,000.

Supplied Vacuum Suction Roll systems for Washing Units to Hyundai Motor Ulsan and Asan Plants.

Registered as a specialized contractor for mechanical equipment construction and established the Equipment Technology Group.

Acquired JCM, later merged in July 2017.

Formed a technical partnership and partnership agreement with HOTANI in Japan for Brush Rolls and Equipment.

Completed the construction of the Asan Factory in Eumbong-myeon, Asan, Chungnam, and launched the Ceramic Division.

Expanded and relocated the headquarters and shaft production factory to the current A Factory in Gangdong-myeon, Gyeongju, Gyeongbuk.

Chairman Hwa-Woong Song was honored with the Prime Minister's Commendation on the 16th Iron Day, hosted by the Korea Iron & Steel Association.

Signed an annual unit price contract with Chosun Refractories for SC Mats.

Ho-Jin Song was appointed as CEO.

Signed a supply agreement for Bung Seals with POSCO CGL overseas factories, including POSCO-Mexico and Maharashtra.

Established a supply agreement for Carousel Drums and Ceramic Hearth Rolls with POSCO STS overseas factories, including POSCO-VST and TST.

Signed mutual growth agreements with POSCO Family and POSCO C&C.

Completed the construction of the Ceramic Factory (Jina Materials Co., Ltd.) in Wangsin-ri, Gangdong-myeon, Gyeongju, Gyeongbuk.

Began supplying POSCO APF Carousel Drums and Ceramic Hearth Rolls.

Established Dabang Roll Co., Ltd. in Zhangjiagang, China, with an initial capital of USD 200,000.

Certified as a CLEAN workplace by the Korea Occupational Safety and Health Agency.

Recognized as a FAMILY company by the Industrial Bank of Korea.

Entered into a supply agreement with DREVER International in Belgium for Ceramic Hearth Rolls.

Relocated headquarters to the current D Factory in Wangsin-ri, Gangdong-myeon, Gyeongju, Gyeongbuk.

Began exporting Ceramic Disks to POSCO STS overseas factories in Zhangjiagang and Qingdao, China

Initiated direct supply of Non-Woven Rolls to domestic and international factories of major Korean automakers, including Hyundai, Kia, Daewoo, Ssangyong, and Samsung.

Successfully localized the production of Ceramic Fiber Rolls.

Signed a technology transfer agreement with POSCO for the manufacturing technology of belt cleaning devices and began supply.

Increased capital to KRW 350 million.

Signed a technical partnership and partnership agreement with MASUDA SEISAKUSHO in Japan for vacuum suction roll production.

Entered a technical partnership with TOSHIBA CERAMIC in Japan for Ceram Roll processing.

Designated as a Technical Development Test Company by the Industrial Bank of KOREA.

Acquired and merged with Daehwa Industry Co., Ltd., and began roller shaft manufacturing.

Recognized as a Promising Small Business by the KOREA Credit Guarantee Fund and increased capital to KRW 200 million.

Signed a technology transfer agreement with POSCO for a patented device to remove foreign substances from steel sheets.

Entered a technology transfer agreement with POSCO for a patented device to remove foreign substances from galvanized materials.

Increased capital to KRW 100 million. KRW.

Signed an annual unit price contract for POSCO STS Ceramic Fiber Rolls.

Localized POSCO Bung Seals and signed an annual unit price contract (March 1995).

Established a technical partnership with Japan’s SUEHIRO SHOJI Co. for Bung Seal production.

Successfully improved the quality of POSCO Brush Rolls, leading to the signing of an annual unit price contract (October 1996).

Approved for the localization of POSCO Non-Woven Rolls and signed an annual unit price contract (November 1990).

Collaborated with SHOWA KOGYO in Japan through a joint development agreement for Brush Rolls.

Formed a technical partnership with TOHO YOGYO in Japan to produce Non-Woven Rolls.

KOREA TOHO Co., Ltd. was established in Guktang-ri, Gangdong-myeon, Gyeongju, Gyeongbuk with an initial capital of KRW 50 million.(Founder ＆ CEO, Hwa-Woong Song)