We sincerely thank you for visiting the website of JINSUNG C&I Co., Ltd.

Our company began as JINSUNG Heat Treatment Co., Ltd. in 1987, holding expertise in material and heat treatment fields. With years of experience, we have expanded onto the global stage as a specialized manufacturer of heavy equipment components, steel industry machinery, and high-quality fasteners.

In 2005, we established an in-house research institute and have been continuously investing in R&D to secure advanced equipment and technical talent. Through these efforts, we have expanded our proprietary technology portfolio. Some of our key developments include heat treatment for forged and cast products, high-frequency heat treatment equipment for Round-type special steel long bars, and the localization of Stay-Bolt for ship engines. We stand at the forefront of national industrial development. Expanding into the machining business, we have grown into a specialized manufacturer of construction equipment components, industrial machinery parts, and fasteners.

In addition, in 2019, we commercialized high-capacity Laser Cladding technology in the field of special surface treatment, being recognized for our technological prowess. We are also expanding its application into new markets such as the world's first high-temperature/high-durability steel industry Rolls and heavy equipment components.

JINSUNG C&I will strive tirelessly to add value to our customers' businesses and create opportunities for mutual growth.

Thank you.