- Specializing in Ultra-High-Pressure Breathing Air Compressors.
- 50 years of industry experience is a core competitive edge, with 100,000 units sold.
- Supplying high-quality, small-to-medium-sized Hydrogen Compressors for the emerging energy market.


The name 'Myoung-Soo-Lee Manufacturing' has long been synonymous with high-pressure compressors in Korea. Now, MSL Compressor Co., Ltd. (CEO Sung Si-min), the successor company, celebrates its 50th anniversary this year. Operating under the motto, "Together with Customers, Together with the World," the company is intensely preparing for its next five decades by focusing on premium quality and innovation.

MSL Compressor pioneered the domestic market, starting with the production of the nation’s first two-stage high-pressure compressor in 1974. This was followed by the development and mass production of the first 200-bar ultra-high-pressure compressor in 1988, and the 400-bar four-stage compressor in 1996. By 2017, the company achieved performance certification from the Korea Gas Safety Corporation for its safety charging enclosures used with breathing air cylinders.

Leveraging this accumulated technology and know-how, MSL Compressor has shifted its focus from being manufacturer-centric to customer-centric. The company collaborates with global partners in Europe, Japan, and the U.S. to offer optimal products and services, leading the domestic and international markets.

MSL Compressor’s flagship product is the 310-bar Ultra-High-Pressure Breathing Air Compressor, essential for providing high-purity, breathable air to fire departments, military, police, and marine personnel. In the domain of ultra-high-pressure products, where thermal and pressure safety is paramount, MSL Compressor has uniquely and repeatedly passed the rigorous 800-hour continuous pressurization test required by a domestic government agency—a feat unmatched globally.

Furthermore, the company has achieved stringent European pressure certifications and gas purity quality standards. This advanced technology is also utilized for pressure testing in aerospace, semiconductor, and high-precision industrial sectors, establishing MSL Compressor as a highly credible supplier to Korea's leading corporations and government bodies.

CEO Sung Si-min emphasized, "Building upon our quality reputation in the domestic market, we currently export to the industrial, defense, and fire safety sectors in many countries, including China, Vietnam, the Philippines, the U.S., and Canada." He highlighted that over 40% of vessels such as gas carriers, oil rigs, and container ships, where quality and durability are critical, use MSL Compressor products. The company is currently ramping up its marketing efforts through YouTube, online channels, and participation in domestic and international exhibitions to promote the brand as a representative of South Korea.

When asked about the company's competitive edge, CEO Sung pointed simply to their "50 years of industry experience." As of 2024, the cumulative sales of their compressors exceed 100,000 units. This volume of sales reflects the company's deep knowledge in meeting diverse industrial requirements, providing not just sales but safe, superior technology and technical solutions.

Aligning with the global Carbon Neutrality 2050 goal, MSL Compressor is at the forefront of the hydrogen industry. The company was the first in Korea, and only the second in the world, to develop a 700-bar ultra-high-pressure compressor solution for hydrogen vehicles.

MSL Compressor is now the sole domestic supplier with a solution to provide high-quality, small-to-medium-sized hydrogen compressors at reasonable prices. The company plans to play a pivotal role in the hydrogen economy by focusing on essential charging infrastructure development and supporting related domestic industry growth. By continuously developing technology that offers economic competitiveness in renewable energy use, MSL Compressor is committed to becoming a key player in the deployment of hydrogen energy. CEO Sung Si-min's management philosophy centers on customer comfort, safety, and satisfaction. He believes that the growth of the company, and the growth of all its members, is intrinsically linked to the industrial advancement of South Korea. The company is committed to further implementing ESG management practices, ensuring the next 50 years are also built on trust and reliability.