Sejong Jeonggi Co., Ltd. is a mold and die manufacturer located in Pyeongtaek, Gyeonggi-do, specializing in the production of injection molds. Led by CEO Lee Jong-young, the company engages in various mold-related businesses, including mold part processing, module manufacturing, and SET manufacturing.

Sejong Jeonggi Co., Ltd. strives to achieve customer satisfaction by proactively identifying and responding to customer needs, while pursuing continuous technological development and quality systems. We primarily produce molds for home appliances such as TV cases, air conditioners, and washing machines, as well as molds for automotive interiors, lenses, and related parts.

Business sectors

• Mold Part Machining: We machine and manufacture all injection mold parts, including upper plates, lower plates, upper and lower cores, slide cores, inclined cores, and small cores.
• Mold Module Manufacturing: Based on CAD data, we manufacture upper and lower sections or upper and lower sets, from part machining to assembly and upper and lower surface alignment.
• Mold SET Production: We ensure mass production capabilities for medium and large automotive molds, such as bumpers, grilles, and carriers, through the CAE-CAD-CAM process.

Products

• Battery Case Mold: Participating in the production of electric vehicle-related molds, we manufacture Hakoa battery case molds, and determining the Hakoa machining process is crucial.
• Automotive Grille Molds: We manufacture thin-rib shaped grille molds using high-speed machining technology and reduce processing costs and delivery times through unmanned night operation.
• Automotive Bumper Molds: We manufacture medium to large-sized molds, such as automotive bumpers, using a process that applies systematic technical solutions to meet short lead times and quality requirements.

Special Features

• Smart Factory and Automation Technology: We establish smart factories by digitizing all processing steps and possess adaptive control technology, human error detection technology, and unmanned operation technology.
• Precision Machining and Quality Control: We eliminate human error through intelligent G-Code development, minimize surface alignment time through standardized tolerance management, and maximize mold operational functionality and mass production life.
• Technological Matureness and Expertise: Demonstrates strengths in technological matureness and commercialization capabilities compared to major competitors, and its expertise in the field is confirmed through its patent portfolio and project execution history.

💡 A word from Jobploy
Sejong Jeonggi Co., Ltd. specializes in the manufacturing of injection molds and possesses strengths in smart factory implementation and automation technology. Understanding and proficiency in precision machine operation and quality control will be advantageous for adapting to the job. This presents a great opportunity for foreign workers who value technical skills and professional growth.