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The production technology of three indications is leading the industry.

In 1980, we 
succeeded in replacing bunker C oil with bituminous coal for the first time in Korea to cope with the energy surge , contributing to energy saving. In 1995, we obtained a Certificate of Cement Quality Inspection from the Ministry of Construction of Japan 
and exported more than 200,000 tons per year to the Japanese market . In 1999, it 
was the first Asian country to receive the 
LIP (Laboratory Inspection Program) certification from CCRL (Cement & Concrete Reference Laboratory) belonging to the National Institute of Standards and Technology (NIST ) Materials 
has been recognized for its rigorous testing environment and test technology. Since then, we have been 
participating in the CCRL's Proficiency Sample Program (PSP) Physical Test twice a year and have been highly evaluated for its technology and reliability in ASTM testing. In addition 
to advanced automatic monitoring and control facilities, the three-indicator system uses a statistical quality control system to analyze the 
quality of the products. There is.