Company Overview

Osung Plant Co., Ltd. is a specialized plant engineering service company focused on ensuring the integrity, cleanliness, and reliability of piping and fluid systems across the petrochemical, shipbuilding & offshore, and industrial plant sectors.

We are particularly strong in delivering field-proven solutions during the commissioning phase, verifying technical requirements, and proactively identifying and resolving potential issues to ensure systems are handed over in a fully operable condition.

We provide integrated services covering the full scope of piping and fluid system preparation, including piping installation and management, pressure testing (Hydrostatic and Pneumatic Testing), leak testing (He / N₂ Leak Testing), and advanced cleaning services (Water Jet Flushing, Chemical Cleaning, and Oil Flushing).

Our capabilities are supported by in-house equipment and dedicated technical teams, enabling high responsiveness in both schedule execution and quality control. We also provide on-site commissioning support, including troubleshooting, re-cleaning, and re-testing, to ensure safe and stable system start-up.

Osung Plant operates with safety, quality, and process efficiency as our core values. We are certified under internationally recognized standards for quality, occupational health & safety, and environmental management (ISO 9001, ISO 45001, ISO 14001).
All operations are executed in full compliance with applicable regulations and industry standards. With extensive project experience, skilled personnel, and standardized procedures, we consistently deliver reliable and high-quality results.

Moving forward, Osung Plant will continue to strengthen its position as a trusted partner in commissioning and piping integrity, supporting our clients’ project success through technical expertise, execution capability, and a strong commitment to quality.